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31.23ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG779652783

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779652783

Diamond specifications and retailer prices

From HK$193,535 HKD
£19,423 GBP
As of October 30, 2026
Save HK$356,590 HKD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$550,124 HKD at Yorxs · As of October 31, 2026
View at Yorxs

About this 31.23ct lab-grown round diamond

This 31.23ct 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 LG779652783 or 779652783. Listed at 8 retailers as of October 30, 2026, with prices from HK$193,535 to HK$550,124, a HK$356,590 spread on the same certified stone. Yorxs lists it at HK$550,124. 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

31.23
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779652783
Dimensions20.26 × 20.32 × 12.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
20.26 mm20.32 mm31.23 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779652783
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.2%

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 30
Current: HK$193,535 HKD|Low: HK$192,884 HKD|High: HK$891,688 HKD|Avg: HK$417,761 HKD|-38.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
October 31, 2026
Retailer 1HK$193,535 HKD
Retailer 6HK$271,053 HKD
Retailer 7HK$281,833 HKD
Retailer 3HK$311,247 HKD
Retailer 5HK$324,326 HKD
Retailer 4HK$524,250 HKD
Retailer 2HK$534,104 HKD
YorxsHK$550,124 HKD

38 data points across 8 retailers

8 retailersHK$193,535 HKD to HK$550,124 HKD

B+
Cheapest Retailer
-
HK$193,535 HKD
£19,423 GBP
B
Retailer 2
-
HK$271,053 HKD
$34,548 USD
View
B
Retailer 3
-
HK$281,833 HKD
$35,922 USD
View
B
Retailer 4
-
HK$311,247 HKD
$39,671 USD
View
Retailer 5
-
HK$324,326 HKD
$41,338 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
HK$524,250 HKD
$66,820 USD
View
B
Retailer 7
-
HK$534,104 HKD
$68,076 USD
View
Most Expensive
B
Yorxs
530935969 · Oct 31
HK$550,124 HKD
€66,779 EUR
View
7 more retailers have this diamond
Prices start from HK$193,535 HKDSave up to HK$356,590 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.

B+
31.23ct Round
HK$193,535 HKD