Emerald|Lab Grown|IGI

31.21ct G VS1 Emerald Lab Grown Diamond

ID • G/VS1 • IGI LG766696134

Shape and cutting style on the report: Emerald cut

Certificate IGI LG766696134

Diamond specifications and retailer prices

From £16,790 GBP
$22,497 USD
As of October 29, 2026
Save £15,990 GBP (49%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £44,610 GBP at Adiamor · As of October 30, 2026
View at Adiamor

About this 31.21ct lab-grown emerald diamond

This 31.21ct lab-grown emerald sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG766696134 or 766696134. Listed at 8 retailers as of October 29, 2026, with a 95% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

31.21
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle44.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766696134
Dimensions21.11 × 14.77 × 9.74 mm
L/W Ratio1.43
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
21.11 mm14.77 mm31.21 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766696134
Side View
Table 61.0%Crown 33.4°Girdle: Slightly ThickPavilion 44.9°Culet: LargeDepth 65.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £44,610 GBP|Low: £16,790 GBP|High: £189,255 GBP|Avg: £49,726 GBP|-7.1%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 6£16,790 GBP
Retailer 8£17,682 GBP
Retailer 3£18,340 GBP
Retailer 5£19,339 GBP
Retailer 2£32,780 GBP
Retailer 4£40,451 GBP
Retailer 7£44,490 GBP
Adiamor£44,610 GBP
Retailer 9£189,255 GBP

20 data points across 9 retailers

8 retailers£16,790 GBP to £32,780 GBP

B+
Cheapest Retailer
-
£16,790 GBP
$22,497 USD
B+
Retailer 2
-
£16,804 GBP
$22,516 USD
View
B
Retailer 3
-
£18,340 GBP
$24,573 USD
View
Retailer 4
-
£19,339 GBP
$25,912 USD
View
Price last confirmed 18 days ago
B
Retailer 5
-
£32,780 GBP
€41,830 EUR
View
Retailer 6
-
£40,451 GBP
$54,200 USD
View
Price under review
Retailer 7
-
£44,490 GBP
$59,612 USD
View
Price under review
Most Expensive
Adiamor
D-72712088 · Oct 30
£44,610 GBP
$59,772 USD
View
Price under review
7 more retailers have this diamond
Prices start from £16,790 GBPSave up to £15,990 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
31.21ct Emerald
£16,790 GBP