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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 $350 AUD
$245 USD
As of October 30, 2026
Save $1,441 AUD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,791 AUD 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 15 retailers as of October 30, 2026, with prices from $350 to $1,791, a $1,441 spread on the same certified stone. Reve Diamonds lists it at $1,791. 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

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: Oct 30
Current: $715 AUD|Low: $315 AUD|High: $1,841 AUD|Avg: $965 AUD|+15.4%
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
Retailer 15
Reve Diamonds
November 1, 2026
Retailer 2$350 AUD
Retailer 14$521 AUD
Retailer 8$599 AUD
Retailer 5$662 AUD
Retailer 12$666 AUD
Retailer 3$675 AUD
Retailer 1$715 AUD
Retailer 15$840 AUD
Retailer 13$948 AUD
Retailer 11$1,035 AUD
Retailer 6$1,063 AUD
Retailer 7$1,283 AUD
Retailer 4$1,322 AUD
Retailer 9$1,527 AUD
Retailer 10$1,562 AUD
Reve Diamonds$1,791 AUD

36 data points across 16 retailers

15 retailers$350 AUD to $1,791 AUD

A
Cheapest Retailer
-
$350 AUD
$245 USD
Final sale: no returns
Retailer 2
-
$521 AUD
£287 GBP
View
Price last confirmed 16 days ago
A
Retailer 3
-
$599 AUD
€400 EUR
View
A
Retailer 4
-
$662 AUD
$464 USD
View
A
Retailer 5
-
$666 AUD
ZAR 7,543 ZAR
View
A
Retailer 6
-
$675 AUD
$473 USD
View
B+
Retailer 7
-
$715 AUD
£394 GBP
View
B+
Retailer 8
-
$840 AUD
$589 USD
View
B+
Retailer 9
-
$948 AUD
View
B+
Retailer 10
-
$1,035 AUD
$725 USD
View
B+
Retailer 11
-
$1,063 AUD
$745 USD
View
B
Retailer 12
-
$1,322 AUD
$927 USD
View
B
Retailer 13
-
$1,527 AUD
$1,070 USD
View
B
Retailer 14
-
$1,562 AUD
£862 GBP
View
Most Expensive
B
Reve Diamonds
ACBB1653A · Nov 1
$1,791 AUD
$1,255 USD
View
14 more retailers have this diamond
Prices start from $350 AUDSave up to $1,441 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
$350 AUD