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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 $365 AUD
HK$2,000 HKD
As of November 1, 2026
Save $746 AUD (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,111 AUD 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 $365 to $1,111, a $746 spread on the same certified stone. Taylor and Hart lists it at $1,111. 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: $551 AUD|Low: $365 AUD|High: $1,111 AUD|Avg: $760 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 2, 2026
Retailer 4$365 AUD
Retailer 1$551 AUD
Retailer 5$566 AUD
Retailer 3$575 AUD
Retailer 2$655 AUD
Retailer 6$1,083 AUD
Taylor and Hart$1,111 AUD

3 data points across 7 retailers

7 retailers$365 AUD to $1,111 AUD

A
Cheapest Retailer
-
$365 AUD
HK$2,000 HKD
A
Retailer 2
-
$551 AUD
€368 EUR
View
A
Retailer 3
-
$566 AUD
$397 USD
View
A
Retailer 4
-
$575 AUD
£318 GBP
View
A
Retailer 5
-
$655 AUD
$459 USD
View
B+
Retailer 6
-
$1,083 AUD
$759 USD
View
Most Expensive
B
Taylor and Hart
BGVXULR · Nov 1
$1,111 AUD
$779 USD
View
6 more retailers have this diamond
Prices start from $365 AUDSave up to $746 AUD

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
$365 AUD