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Round|Lab Grown|IGI

18.31ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG779646467

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779646467

Diamond specifications and retailer prices

From HK$70,529 HKD
$8,989 USD
As of November 2, 2026
Save HK$169,088 HKD (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$239,617 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 18.31ct lab-grown round diamond

This 18.31ct 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 LG779646467 or 779646467. Listed at 7 retailers as of October 31, 2026, with prices from HK$70,529 to HK$239,617, a HK$169,088 spread on the same certified stone. Taylor and Hart lists it at HK$239,617. 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

18.31
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779646467
Dimensions17.13 × 17.19 × 10.19 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
17.13 mm17.19 mm18.31 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779646467
Side View
Table 58.0%Crown 33.3°Girdle: MediumPavilion 40.3°Culet: NoneDepth 59.4%

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 2
Current: HK$85,899 HKD|Low: HK$68,324 HKD|High: HK$239,617 HKD|Avg: HK$121,790 HKD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 2, 2026
Retailer 4HK$70,529 HKD
Retailer 6HK$76,628 HKD
Retailer 1HK$85,899 HKD
Retailer 3HK$89,062 HKD
Retailer 2HK$121,599 HKD
Retailer 5HK$172,583 HKD
Taylor and HartHK$239,617 HKD

41 data points across 7 retailers

7 retailersHK$70,529 HKD to HK$239,617 HKD

A
Cheapest Retailer
-
HK$70,529 HKD
$8,989 USD
B+
Retailer 2
-
HK$76,628 HKD
View
B+
Retailer 3
-
HK$85,899 HKD
$10,948 USD
View
B+
Retailer 4
-
HK$89,062 HKD
£8,938 GBP
View
B+
Retailer 5
-
HK$121,599 HKD
€14,760 EUR
View
B
Retailer 6
-
HK$172,583 HKD
$21,996 USD
View
Most Expensive
B
Taylor and Hart
TLX10KG · Oct 31
HK$239,617 HKD
$30,540 USD
View
6 more retailers have this diamond
Prices start from HK$70,529 HKDSave up to HK$169,088 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
18.31ct Round
HK$70,529 HKD