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Cushion|Lab Grown|IGI

1.21ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG658475150

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG658475150

Diamond specifications and retailer prices

From $435 NZD
$245 USD
As of November 1, 2026
Save $1,795 NZD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,230 NZD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 LG658475150 or 658475150. Listed at 14 retailers as of November 1, 2026, with prices from $435 to $2,230, a $1,795 spread on the same certified stone. Reve Diamonds lists it at $2,230. 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 angle34.6°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658475150
Dimensions6.14 × 6.12 × 4.13 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.14 mm6.12 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658475150
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $889 NZD|Low: $393 NZD|High: $2,293 NZD|Avg: $1,186 NZD|+16.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Reve Diamonds
November 3, 2026
Retailer 2$435 NZD
Retailer 13$649 NZD
Retailer 9$746 NZD
Retailer 5$825 NZD
Retailer 8$834 NZD
Retailer 3$841 NZD
Retailer 1$889 NZD
Retailer 14$1,047 NZD
Retailer 7$1,182 NZD
Retailer 12$1,289 NZD
Retailer 6$1,324 NZD
Retailer 4$1,647 NZD
Retailer 10$1,902 NZD
Retailer 11$1,946 NZD
Reve Diamonds$2,230 NZD

37 data points across 15 retailers

14 retailers$435 NZD to $2,230 NZD

A
Cheapest Retailer
-
$435 NZD
$245 USD
Final sale: no returns
A
Retailer 2
-
$746 NZD
€400 EUR
View
A
Retailer 3
-
$825 NZD
$464 USD
View
A
Retailer 4
-
$834 NZD
ZAR 7,581 ZAR
View
A
Retailer 5
-
$841 NZD
$473 USD
View
B+
Retailer 6
-
$889 NZD
£394 GBP
View
B+
Retailer 7
-
$1,047 NZD
$589 USD
View
B+
Retailer 8
-
$1,182 NZD
A$1,023 AUD
View
B+
Retailer 9
-
$1,289 NZD
$725 USD
View
B+
Retailer 10
-
$1,324 NZD
$745 USD
View
B
Retailer 11
-
$1,647 NZD
$927 USD
View
B
Retailer 12
-
$1,902 NZD
$1,070 USD
View
B
Retailer 13
-
$1,946 NZD
£862 GBP
View
Most Expensive
B
Reve Diamonds
ACBB1653A · Nov 1
$2,230 NZD
$1,255 USD
View
13 more retailers have this diamond
Prices start from $435 NZDSave up to $1,795 NZD

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
$435 NZD