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Round|Lab Grown|IGI

1.21ct F VVS1 Round Lab Grown Diamond

ID • F/VVS1 • IGI LG668433536

Shape and cutting style on the report: Round brilliant

Certificate IGI LG668433536

Diamond specifications and retailer prices

From $187 USD
As of November 1, 2026
Save $933 USD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,120 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG668433536 or 668433536. Listed at 20 retailers as of November 1, 2026, with prices from $187 to $1,120, a $933 spread on the same certified stone. Brilliant Earth lists it at $1,120. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668433536
Dimensions6.83 × 6.89 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.83 mm6.89 mm1.21 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668433536
Side View
Table 58.0%Crown 33.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.1%

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: Nov 1
Current: $1,120 USD|Low: $179 USD|High: $1,270 USD|Avg: $515 USD|-11.8%
Brilliant Earth
Retailer 2
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Retailer 20
November 2, 2026
Retailer 20$187 USD
Retailer 19$209 USD
Retailer 12$217 USD
Retailer 6$232 USD
Retailer 7$232 USD
Retailer 3$256 USD
Retailer 9$312 USD
Retailer 16$400 USD
Retailer 15$419 USD
Retailer 13$428 USD
Retailer 4$467 USD
Retailer 8$478 USD
Retailer 14$566 USD
Retailer 17$595 USD
Retailer 10$745 USD
Retailer 18$748 USD
Retailer 11$777 USD
Retailer 5$799 USD
Retailer 2$1,083 USD
Brilliant Earth$1,120 USD

42 data points across 20 retailers

20 retailers$187 USD to $1,120 USD

A
Cheapest Retailer
-
$187 USD
A
Retailer 2
-
$209 USD
View
Final sale: no returns
A
Retailer 3
-
$217 USD
View
Retailer 4
-
$232 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$232 USD
View
A
Retailer 6
-
$256 USD
HK$2,000 HKD
View
B+
Retailer 7
-
$312 USD
View
A
Retailer 8
-
$400 USD
ZAR 6,465 ZAR
View
A
Retailer 9
-
$419 USD
£330 GBP
View
A
Retailer 10
-
$428 USD
€408 EUR
View
B+
Retailer 11
-
$467 USD
View
B+
Retailer 12
-
$478 USD
View
B+
Retailer 13
-
$566 USD
A$870 AUD
View
B+
Retailer 14
-
$595 USD
View
B
Retailer 15
-
$745 USD
View
B
Retailer 16
-
$748 USD
View
B
Retailer 17
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$777 USD
View
B
Retailer 18
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$799 USD
View
B
Retailer 19
-
$1,083 USD
£853 GBP
View
Most Expensive
B
Brilliant Earth
15027367A · Nov 2
$1,120 USD
View
19 more retailers have this diamond
Prices start from $187 USDSave up to $933 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 Round
$187 USD