Working Days:
Tue – Sat
Working Hours:
10:00 AM – 7:00 PM
SGL Labs Opera House is a diamond certification lab in Opera House, Mumbai. It is located in one of Mumbai’s oldest diamond and gemstone trading areas. Located at The Jewel House near Roxy Cinema. It serves diamond dealers, jewellery makers, and retailers working in and around Opera House. The area has long been known as a key diamond and gemstone trading hub in Mumbai.
The centre certifies natural diamonds, lab-grown diamonds, coloured gemstones, and finished jewellery using tests carried out by its on-site gemologists. It serves manufacturers, retailers, jewellery professionals, and individual clients across South Mumbai’s diamond trade.
Every report follows SGL Labs’ standard grading process, covering the 4Cs for diamonds and full material checks for jewellery. It also uses AI screening tools and diamond DNA solutions for added checks. These reports are trusted by traders and buyers across India and other countries. Clients can bring single stones or full consignments to our Opera House centre for grading and certification. Our team will explain the report type and expected turnaround time before submissions.
Our on-site gemologists prepare the documentation and issue the report without sending items to another lab. You can check every certificate online using its report number.
Get full 4Cs grading for natural loose diamonds, covering cut, colour, clarity, and carat. Every diamond gets a detailed report that you can verify online.
Get clear grading and proper labelling for lab-grown diamonds, so Opera House jewellers and buyers know exactly what they are buying.
We certify finished jewellery by checking diamond and gemstone details and metal content in rings, necklaces, and complete sets. This fits Opera House’s busy group of jewellery makers and retailers.
Bring one piece or a full consignment to our Opera House centre. Our team will guide you on the right report and share the estimated cost before grading starts.
