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Oval|Lab Grown|IGI

21.37ct F VS2 Oval Lab Grown Diamond

ID • F/VS2 • IGI LG818613599

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818613599

Diamond specifications and retailer prices

From HK$110,837 HKD
£11,123 GBP
As of November 2, 2026
Save HK$190,061 HKD (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$300,898 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 21.37ct lab-grown oval diamond

This 21.37ct lab-grown oval sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818613599 or 818613599. Listed at 8 retailers as of October 31, 2026, with prices from HK$110,837 to HK$300,898, a HK$190,061 spread on the same certified stone. Brilliant Earth lists it at HK$300,898. 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

21.37
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818613599
Dimensions22.83 × 15.84 × 9.68 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
22.83 mm15.84 mm21.37 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818613599
Side View
Table 56.0%Crown 34.3°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 61.1%

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: Nov 2
Current: HK$300,898 HKD|Low: HK$110,803 HKD|High: HK$301,996 HKD|Avg: HK$169,156 HKD|-0.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2HK$110,837 HKD
Retailer 7HK$118,633 HKD
Retailer 4HK$132,136 HKD
Retailer 6HK$140,210 HKD
Retailer 8HK$144,243 HKD
Retailer 5HK$172,449 HKD
Retailer 3HK$258,809 HKD
Brilliant EarthHK$300,898 HKD

42 data points across 8 retailers

8 retailersHK$110,837 HKD to HK$300,898 HKD

B+
Cheapest Retailer
-
HK$110,837 HKD
£11,123 GBP
B
Retailer 2
-
HK$118,633 HKD
$15,120 USD
View
B
Retailer 3
-
HK$132,136 HKD
$16,841 USD
View
B
Retailer 4
-
HK$140,210 HKD
$17,870 USD
View
B
Retailer 5
-
HK$144,243 HKD
$18,384 USD
View
B
Retailer 6
-
HK$172,449 HKD
$21,979 USD
View
Final sale: no returns
B
Retailer 7
-
HK$258,809 HKD
€31,415 EUR
View
Most Expensive
B
Brilliant Earth
22146874A · Oct 31
HK$300,898 HKD
$38,350 USD
View
7 more retailers have this diamond
Prices start from HK$110,837 HKDSave up to HK$190,061 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+
21.37ct Oval
HK$110,837 HKD