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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG749577139

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

Certificate IGI LG749577139

Diamond specifications and retailer prices

From $447 USD
As of October 30, 2026
Save $946 USD (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,393 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 LG749577139 or 749577139. Listed at 10 retailers as of October 30, 2026, with prices from $447 to $1,393, a $946 spread on the same certified stone. Taylor and Hart lists it at $1,393. 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 angle35.5°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749577139
Dimensions6.43 × 6.14 × 3.91 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm6.14 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749577139
Side View
Table 63.0%Crown 35.5°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 63.7%

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: Oct 30
Current: $489 USD|Low: $437 USD|High: $1,393 USD|Avg: $774 USD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Taylor and Hart
October 31, 2026
Retailer 9$447 USD
Retailer 7$462 USD
Retailer 4$464 USD
Retailer 1$489 USD
Retailer 2$498 USD
Retailer 5$660 USD
Retailer 6$890 USD
Retailer 8$1,081 USD
Retailer 3$1,090 USD
Taylor and Hart$1,393 USD

42 data points across 10 retailers

10 retailers$447 USD to $1,393 USD

A
Cheapest Retailer
-
$447 USD
A
Retailer 2
-
$462 USD
View
A
Retailer 3
-
$464 USD
ZAR 7,502 ZAR
View
A
Retailer 4
-
$489 USD
€466 EUR
View
A
Retailer 5
-
$498 USD
£392 GBP
View
B+
Retailer 6
-
$660 USD
A$1,016 AUD
View
Retailer 7
-
$890 USD
View
Price last confirmed 24 days ago
B
Retailer 8
-
$1,081 USD
SGD 1,461 SGD
View
B
Retailer 9
-
$1,090 USD
£858 GBP
View
Most Expensive
B
Taylor and Hart
B9Y3OZB · Oct 31
$1,393 USD
View
9 more retailers have this diamond
Prices start from $447 USDSave up to $946 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
$447 USD