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Cushion|Lab Grown|IGI

6.21ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG835695999

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

Certificate IGI LG835695999

Diamond specifications and retailer prices

From HK$139,599 HKD
$17,793 USD
As of November 1, 2026
Save HK$289,153 HKD (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$428,752 HKD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 6.21ct lab-grown cushion diamond

This 6.21ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG835695999 or 835695999. Listed at 12 retailers as of October 27, 2026, with prices from HK$139,599 to HK$428,752, a HK$289,153 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$428,752. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

6.21
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835695999
Dimensions10.70 × 10.58 × 6.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.70 mm10.58 mm6.21 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835695999
Side View
Table 63.0%Crown 39.8°Girdle: MED-THKPavilion 38°Culet: NoneDepth 66.1%

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 1
Current: HK$241,170 HKD|Low: HK$139,599 HKD|High: HK$428,752 HKD|Avg: HK$257,304 HKD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 1, 2026
Retailer 2HK$139,599 HKD
Retailer 4HK$168,118 HKD
Retailer 9HK$188,893 HKD
Retailer 6HK$205,165 HKD
Retailer 1HK$241,170 HKD
Retailer 3HK$255,465 HKD
Retailer 5HK$260,773 HKD
Retailer 10HK$277,440 HKD
Retailer 7HK$297,116 HKD
Retailer 8HK$377,331 HKD
Wholesale Diamonds DirectHK$428,752 HKD

9 data points across 11 retailers

12 retailersHK$139,599 HKD to HK$428,752 HKD

B+
Cheapest Retailer
-
HK$139,599 HKD
$17,793 USD
B+
Retailer 2
-
HK$168,118 HKD
£16,873 GBP
View
B+
Retailer 3
-
HK$188,893 HKD
$24,076 USD
View
B+
Retailer 4
-
HK$205,165 HKD
$26,150 USD
View
B
Retailer 5
-
HK$241,170 HKD
£24,204 GBP
View
B
Retailer 6
-
HK$255,465 HKD
A$50,094 AUD
View
B
Retailer 7
-
HK$260,773 HKD
€31,655 EUR
View
B
Retailer 8
-
HK$277,440 HKD
$35,362 USD
View
B
Retailer 9
-
HK$287,427 HKD
$36,635 USD
View
B
Retailer 10
-
HK$297,116 HKD
ZAR 611,792 ZAR
View
B
Retailer 11
-
HK$377,331 HKD
$48,094 USD
View
Most Expensive
B
Wholesale Diamonds Direct
584852956 · Oct 27
HK$428,752 HKD
$54,648 USD
View
11 more retailers have this diamond
Prices start from HK$139,599 HKDSave up to HK$289,153 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+
6.21ct Cushion
HK$139,599 HKD