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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG620454308

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG620454308

Diamond specifications and retailer prices

From $293 USD
£230 GBP
As of October 29, 2026
Save $1,417 USD (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,710 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore 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 LG620454308 or 620454308. Listed at 6 retailers as of October 29, 2026, with prices from $293 to $1,710, a $1,417 spread on the same certified stone. Do Amore Diamonds lists it at $1,710. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620454308
Dimensions6.15 × 6.12 × 4.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.15 mm6.12 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620454308
Side View
Table 61.0%Crown 34.6°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 65.8%

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 29
Current: $1,710 USD|Low: $291 USD|High: $1,750 USD|Avg: $695 USD|-2.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3$293 USD
Retailer 5$391 USD
Retailer 6$428 USD
Retailer 10$441 USD
Retailer 8$460 USD
Retailer 9$529 USD
Retailer 4$593 USD
Retailer 7$983 USD
Retailer 2$1,143 USD
Do Amore Diamonds$1,710 USD

38 data points across 10 retailers

6 retailers$293 USD to $1,710 USD

A
Cheapest Retailer
-
$293 USD
£230 GBP
A
Retailer 2
-
$391 USD
View
A
Retailer 3
-
$495 USD
View
B+
Retailer 4
-
$593 USD
A$913 AUD
View
B
Retailer 5
-
$1,143 USD
£900 GBP
View
Most Expensive
B
Do Amore Diamonds
27-5F4D4275D · Oct 29
$1,710 USD
View
5 more retailers have this diamond
Prices start from $293 USDSave up to $1,417 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
$293 USD