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Cushion|Lab Grown|IGI

1.21ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG828658173

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG828658173

Diamond specifications and retailer prices

From $583 NZD
$328 USD
As of November 1, 2026
Save $2,758 NZD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,341 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore 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 LG828658173 or 828658173. Listed at 10 retailers as of November 1, 2026, with prices from $583 to $3,341, a $2,758 spread on the same certified stone. Do Amore Diamonds lists it at $3,341. 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 angle38.8°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828658173
Dimensions7.67 × 5.44 × 3.47 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.67 mm5.44 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828658173
Side View
Table 66.0%Crown 38.8°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 63.8%

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: $3,341 NZD|Low: $489 NZD|High: $3,341 NZD|Avg: $1,175 NZD
Do Amore Diamonds
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
October 31, 2026
Retailer 11$583 NZD
Retailer 4$592 NZD
Retailer 14$608 NZD
Retailer 7$638 NZD
Retailer 10$658 NZD
Retailer 2$771 NZD
Retailer 13$975 NZD
Retailer 6$1,253 NZD
Retailer 3$1,254 NZD
Retailer 5$1,276 NZD
Retailer 8$1,372 NZD
Retailer 12$1,565 NZD
Retailer 9$1,912 NZD
Do Amore Diamonds$3,341 NZD

9 data points across 14 retailers

10 retailers$583 NZD to $3,341 NZD

B+
Cheapest Retailer
-
$583 NZD
$328 USD
A
Retailer 2
-
$638 NZD
£283 GBP
View
Retailer 3
-
$658 NZD
$370 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$771 NZD
€413 EUR
View
B+
Retailer 5
-
$975 NZD
$548 USD
View
Retailer 6
-
$1,276 NZD
$718 USD
View
Price last confirmed 54 days ago
B+
Retailer 7
-
$1,372 NZD
A$1,188 AUD
View
B
Retailer 8
-
$1,565 NZD
$880 USD
View
Retailer 9
-
$1,912 NZD
£847 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-86CAAC5FE · Nov 2
$3,341 NZD
$1,880 USD
View
9 more retailers have this diamond
Prices start from $583 NZDSave up to $2,758 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
$583 NZD