Cushion|Lab Grown|IGI

1.21ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG834609843

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG834609843

Diamond specifications and retailer prices

From $278 USD
As of October 30, 2026
Save $1,602 USD (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,880 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 very-good cut grade and certified by IGI LG834609843 or 834609843. Listed at 13 retailers as of October 29, 2026, with prices from $278 to $1,880, a $1,602 spread on the same certified stone. Brilliant Earth lists it at $1,880. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG834609843
Dimensions6.25 × 6.14 × 4.10 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.25 mm6.14 mm1.21 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG834609843
Side View
Table 63.0%Crown 36.1°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 66.8%

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: Oct 30
Current: $1,880 USD|Low: $188 USD|High: $1,880 USD|Avg: $709 USD
Brilliant Earth
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 6$273 USD
Retailer 9$278 USD
Retailer 13$433 USD
Retailer 14$446 USD
Retailer 10$453 USD
Retailer 2$487 USD
Retailer 8$584 USD
Retailer 3$635 USD
Retailer 7$701 USD
Retailer 12$899 USD
Retailer 5$1,001 USD
Retailer 4$1,043 USD
Retailer 11$1,233 USD
Brilliant Earth$1,880 USD

43 data points across 14 retailers

13 retailers$278 USD to $1,880 USD

A
Cheapest Retailer
-
$278 USD
Final sale: no returns
A
Retailer 2
-
$433 USD
€412 EUR
View
A
Retailer 3
-
$446 USD
ZAR 7,212 ZAR
View
A
Retailer 4
-
$453 USD
View
A
Retailer 5
-
$487 USD
£383 GBP
View
B+
Retailer 6
-
$584 USD
View
B+
Retailer 7
-
$635 USD
A$977 AUD
View
B+
Retailer 8
-
$701 USD
View
B
Retailer 9
-
$899 USD
View
Retailer 10
-
$1,001 USD
A$1,540 AUD
View
Price last confirmed 22 days ago
B
Retailer 11
-
$1,043 USD
£821 GBP
View
B
Retailer 12
-
$1,233 USD
View
Most Expensive
B
Brilliant Earth
21696487A · Oct 29
$1,880 USD
View
12 more retailers have this diamond
Prices start from $278 USDSave up to $1,602 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
$278 USD