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Round|Lab Grown|IGI

8.57ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG837681312

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837681312

Diamond specifications and retailer prices

From HK$12,004 HKD
$1,530 USD
As of November 1, 2026
Save HK$19,308 HKD (62%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$68,022 HKD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 8.57ct lab-grown round diamond

This 8.57ct lab-grown round 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 LG837681312 or 837681312. Listed at 5 retailers as of November 1, 2026, with a 161% 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

8.57
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837681312
Dimensions12.89 × 13.00 × 8.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.89 mm13.00 mm8.57 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837681312
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$31,312 HKD|Low: HK$12,004 HKD|High: HK$33,101 HKD|Avg: HK$21,781 HKD|-5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 27, 2026
Retailer 2HK$12,004 HKD
Retailer 3HK$16,052 HKD
Retailer 5HK$17,390 HKD
Retailer 4HK$29,933 HKD
Retailer 1HK$31,312 HKD

16 data points across 5 retailers

5 retailersHK$12,004 HKD to HK$31,312 HKD

A
Cheapest Retailer
-
HK$12,004 HKD
$1,530 USD
Final sale: no returns
B+
Retailer 2
-
HK$16,052 HKD
$2,046 USD
View
Retailer 3
-
HK$29,933 HKD
$3,815 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
HK$31,312 HKD
$3,991 USD
View
Most Expensive
Brilliant Earth
21452917A · Sep 28
HK$68,022 HKD
$8,670 USD
View
Price last confirmed 34 days ago
4 more retailers have this diamond
Prices start from HK$12,004 HKDSave up to HK$19,308 HKD

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.

A
8.57ct Round
HK$12,004 HKD