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Cushion|Lab Grown|IGI

1.21ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG850690159

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

Certificate IGI LG850690159

Diamond specifications and retailer prices

From HK$2,009 HKD
As of November 1, 2026
Save HK$4,101 HKD (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$6,109 HKD at Taylor and Hart · As of November 1, 2026
View at Taylor and Hart

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG850690159 or 850690159. Listed at 7 retailers as of November 1, 2026, with prices from HK$2,009 to HK$6,109, a HK$4,101 spread on the same certified stone. Taylor and Hart lists it at HK$6,109. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850690159
Dimensions6.18 × 6.15 × 4.17 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.18 mm6.15 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850690159
Side View
Table 65.0%Crown 35.3°Girdle: STK-THKPavilion 41°Culet: NoneDepth 67.8%

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$3,032 HKD|Low: HK$2,009 HKD|High: HK$6,109 HKD|Avg: HK$4,177 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 2, 2026
Retailer 4HK$2,009 HKD
Retailer 1HK$3,032 HKD
Retailer 5HK$3,115 HKD
Retailer 3HK$3,164 HKD
Retailer 2HK$3,601 HKD
Retailer 6HK$5,955 HKD
Taylor and HartHK$6,109 HKD

3 data points across 7 retailers

7 retailersHK$2,009 HKD to HK$6,109 HKD

A
Cheapest Retailer
-
HK$2,009 HKD
A
Retailer 2
-
HK$3,032 HKD
€368 EUR
View
A
Retailer 3
-
HK$3,115 HKD
$397 USD
View
A
Retailer 4
-
HK$3,164 HKD
£318 GBP
View
A
Retailer 5
-
HK$3,601 HKD
$459 USD
View
B+
Retailer 6
-
HK$5,955 HKD
$759 USD
View
Most Expensive
B
Taylor and Hart
BGVXULR · Nov 1
HK$6,109 HKD
$779 USD
View
6 more retailers have this diamond
Prices start from HK$2,009 HKDSave up to HK$4,101 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
1.21ct Cushion
HK$2,009 HKD