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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG828685827

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

Certificate IGI LG828685827

Diamond specifications and retailer prices

From $209 USD
As of November 4, 2026
Save $943 USD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,152 USD at Reve Diamonds · As of November 4, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG828685827 or 828685827. Listed at 15 retailers as of November 4, 2026, with prices from $209 to $1,152, a $943 spread on the same certified stone. Reve Diamonds lists it at $1,152. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828685827
Dimensions6.30 × 6.19 × 4.06 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
6.30 mm6.19 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828685827
Side View
Table 62.0%Crown 33.1°Girdle: MED-THKPavilion 39.2°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
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 4
Current: $416 USD|Low: $199 USD|High: $1,152 USD|Avg: $570 USD|+7.8%
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 5, 2026
Retailer 7$209 USD
Retailer 6$223 USD
Retailer 13$388 USD
Retailer 11$400 USD
Retailer 3$408 USD
Retailer 1$416 USD
Retailer 14$436 USD
Retailer 9$565 USD
Retailer 8$605 USD
Retailer 5$650 USD
Retailer 10$660 USD
Retailer 2$670 USD
Retailer 4$799 USD
Retailer 12$1,083 USD
Reve Diamonds$1,152 USD

35 data points across 15 retailers

15 retailers$209 USD to $1,152 USD

A
Cheapest Retailer
-
$209 USD
Final sale: no returns
Retailer 2
-
$223 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$388 USD
View
A
Retailer 4
-
$400 USD
View
A
Retailer 5
-
$408 USD
View
A
Retailer 6
-
$416 USD
View
A
Retailer 7
-
$436 USD
View
B+
Retailer 8
-
$565 USD
View
B+
Retailer 9
-
$605 USD
View
Retailer 10
-
$650 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$660 USD
View
B+
Retailer 12
-
$670 USD
View
B
Retailer 13
-
$799 USD
View
B
Retailer 14
-
$1,083 USD
View
Most Expensive
B
Reve Diamonds
FBC391584 · Nov 4
$1,152 USD
View
14 more retailers have this diamond
Prices start from $209 USDSave up to $943 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
$209 USD