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Cushion|Lab Grown|IGI

1.21ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG830658016

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG830658016

Diamond specifications and retailer prices

From $346 USD
As of November 1, 2026
Save $1,496 USD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,842 USD at Queensmith · As of October 27, 2026
View at Queensmith

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG830658016 or 830658016. Listed at 13 retailers as of October 27, 2026, with prices from $346 to $1,842, a $1,496 spread on the same certified stone. Queensmith lists it at $1,842. 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
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle44.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830658016
Dimensions7.06 × 5.67 × 3.67 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.06 mm5.67 mm1.21 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830658016
Side View
Table 63.0%Crown 36°Girdle: MED-STKPavilion 44.3°Culet: LargeDepth 64.7%

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: $683 USD|Low: $346 USD|High: $1,927 USD|Avg: $843 USD|-12.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6$346 USD
Retailer 4$384 USD
Retailer 3$515 USD
Retailer 8$540 USD
Retailer 7$613 USD
Retailer 12$618 USD
Retailer 5$661 USD
Retailer 1$683 USD
Retailer 10$935 USD
Retailer 11$992 USD
Retailer 2$1,279 USD
Retailer 9$1,546 USD

42 data points across 12 retailers

13 retailers$346 USD to $1,842 USD

A
Cheapest Retailer
-
$346 USD
Final sale: no returns
Retailer 2
-
$384 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$515 USD
View
A
Retailer 4
-
$540 USD
View
B+
Retailer 5
-
$613 USD
€584 EUR
View
B+
Retailer 6
-
$618 USD
View
B+
Retailer 7
-
$661 USD
ZAR 10,684 ZAR
View
B+
Retailer 8
-
$683 USD
£537 GBP
View
B+
Retailer 9
-
$935 USD
A$1,439 AUD
View
B
Retailer 10
-
$992 USD
View
B
Retailer 11
-
$1,279 USD
View
B
Retailer 12
-
$1,546 USD
£1,217 GBP
View
Most Expensive
B
Queensmith
LG830658016 · Oct 27
$1,842 USD
£1,450 GBP
View
12 more retailers have this diamond
Prices start from $346 USDSave up to $1,496 USD

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
$346 USD