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Round|Lab Grown|IGI

1.21ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG683543521

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683543521

Diamond specifications and retailer prices

From $174 USD
As of November 1, 2026
Save $936 USD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,110 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG683543521 or 683543521. Listed at 22 retailers as of November 1, 2026, with prices from $174 to $1,110, a $936 spread on the same certified stone. Reve Diamonds lists it at $1,110. 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 angle33.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683543521
Dimensions6.90 × 6.95 × 4.15 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
6.90 mm6.95 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683543521
Side View
Table 59.0%Crown 33.8°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 59.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $573 USD|Low: $172 USD|High: $1,110 USD|Avg: $486 USD|+1.1%
Retailer 1
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Retailer 19
Reve Diamonds
November 2, 2026
Retailer 10$174 USD
Retailer 5$195 USD
Retailer 2$202 USD
Retailer 6$215 USD
Retailer 8$216 USD
Retailer 15$372 USD
Retailer 7$384 USD
Retailer 13$385 USD
Retailer 12$416 USD
Retailer 4$464 USD
Retailer 16$486 USD
Retailer 19$500 USD
Retailer 14$526 USD
Retailer 1$573 USD
Retailer 17$651 USD
Retailer 3$680 USD
Retailer 11$693 USD
Retailer 9$747 USD
Retailer 18$1,010 USD
Reve Diamonds$1,110 USD

42 data points across 20 retailers

22 retailers$174 USD to $1,110 USD

A
Cheapest Retailer
-
$174 USD
Retailer 2
-
$195 USD
View
Price last confirmed 7 days ago
Final sale: no returns
A
Retailer 3
-
$202 USD
View
A
Retailer 4
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$215 USD
View
Retailer 5
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$216 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$372 USD
ZAR 6,010 ZAR
View
A
Retailer 7
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$384 USD
View
A
Retailer 8
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$385 USD
£303 GBP
View
A
Retailer 9
-
$390 USD
View
B+
Retailer 10
-
$416 USD
€396 EUR
View
B+
Retailer 11
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$464 USD
View
B+
Retailer 12
-
$486 USD
A$748 AUD
View
B+
Retailer 13
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$500 USD
View
B+
Retailer 14
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$526 USD
A$809 AUD
View
B+
Retailer 15
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$573 USD
View
B+
Retailer 16
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$651 USD
A$1,001 AUD
View
Retailer 17
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$680 USD
View
Price last confirmed 17 days ago
B
Retailer 18
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$693 USD
View
B
Retailer 19
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$747 USD
View
B
Retailer 20
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$748 USD
View
B
Retailer 21
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$1,010 USD
£795 GBP
View
Most Expensive
B
Reve Diamonds
CCD89B03D · Nov 1
$1,110 USD
View
21 more retailers have this diamond
Prices start from $174 USDSave up to $936 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
$174 USD