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Cushion|Lab Grown|IGI

8.21ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG792639655

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG792639655

Diamond specifications and retailer prices

From HK$37,652 HKD
$4,799 USD
As of November 1, 2026
Save HK$101,382 HKD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$139,034 HKD at Adiamor · As of October 31, 2026
View at Adiamor

About this 8.21ct lab-grown cushion diamond

This 8.21ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG792639655 or 792639655. Listed at 14 retailers as of October 31, 2026, with prices from HK$37,652 to HK$139,034, a HK$101,382 spread on the same certified stone. Adiamor lists it at HK$139,034. 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

8.21
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792639655
Dimensions11.23 × 11.18 × 7.19 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.23 mm11.18 mm8.21 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792639655
Side View
Table 64.0%Crown 39.6°Girdle: STK-THKPavilion 32.2°Culet: NoneDepth 64.3%

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$80,749 HKD|Low: HK$37,338 HKD|High: HK$98,872 HKD|Avg: HK$56,160 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2HK$37,652 HKD
Retailer 3HK$38,719 HKD
Retailer 10HK$39,001 HKD
Retailer 12HK$39,346 HKD
Retailer 6HK$46,404 HKD
Retailer 7HK$50,507 HKD
Retailer 4HK$54,882 HKD
Retailer 11HK$60,357 HKD
Retailer 9HK$65,393 HKD
Retailer 8HK$72,887 HKD
Retailer 5HK$73,599 HKD
Retailer 1HK$80,749 HKD

42 data points across 12 retailers

14 retailersHK$37,652 HKD to HK$139,034 HKD

A
Cheapest Retailer
-
HK$37,652 HKD
$4,799 USD
Final sale: no returns
A
Retailer 2
-
HK$38,719 HKD
$4,935 USD
View
Retailer 3
-
HK$39,001 HKD
$4,971 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
HK$39,346 HKD
$5,015 USD
View
B+
Retailer 5
-
HK$46,404 HKD
£4,657 GBP
View
B+
Retailer 6
-
HK$50,507 HKD
£5,069 GBP
View
B+
Retailer 7
-
HK$54,882 HKD
£5,508 GBP
View
B+
Retailer 8
-
HK$60,357 HKD
$7,693 USD
View
B+
Retailer 9
-
HK$65,393 HKD
ZAR 134,650 ZAR
View
B+
Retailer 10
-
HK$72,887 HKD
$9,290 USD
View
B
Retailer 11
-
HK$73,599 HKD
A$14,432 AUD
View
B+
Retailer 12
-
HK$80,749 HKD
£8,104 GBP
View
B
Retailer 13
-
HK$138,916 HKD
$17,706 USD
View
Most Expensive
B
Adiamor
D-80554870 · Oct 31
HK$139,034 HKD
$17,721 USD
View
13 more retailers have this diamond
Prices start from HK$37,652 HKDSave up to HK$101,382 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
8.21ct Cushion
HK$37,652 HKD