Round|Lab Grown|IGI

1.21ct F VS1 Round Lab Grown Diamond

EX • F/VS1 • IGI LG811623864

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811623864

Diamond specifications and retailer prices

From $185 USD
As of November 1, 2026
Save $960 USD (84%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $1,145 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 LG811623864 or 811623864. Listed at 25 retailers as of November 1, 2026, with prices from $185 to $1,145, a $960 spread on the same certified stone. Reve Diamonds lists it at $1,145. 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 angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811623864
Dimensions6.84 × 6.77 × 4.25 mm
L/W Ratio1.01
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
6.84 mm6.77 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811623864
Side View
Table 56.0%Crown 35.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $618 USD|Low: $183 USD|High: $1,145 USD|Avg: $523 USD|+11.8%
Retailer 1
Retailer 2
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Retailer 19
Reve Diamonds
November 2, 2026
Retailer 7$185 USD
Retailer 15$207 USD
Retailer 17$214 USD
Retailer 3$229 USD
Retailer 4$229 USD
Retailer 16$396 USD
Retailer 5$404 USD
Retailer 14$414 USD
Retailer 12$441 USD
Retailer 2$476 USD
Retailer 19$505 USD
Retailer 10$506 USD
Retailer 13$559 USD
Retailer 1$618 USD
Retailer 9$650 USD
Retailer 8$737 USD
Retailer 11$789 USD
Retailer 6$791 USD
Retailer 18$1,077 USD
Reve Diamonds$1,145 USD

45 data points across 20 retailers

25 retailers$185 USD to $1,145 USD

Retailer 1
-
$183 USD
Price last confirmed 41 days ago
A
Retailer 2
-
$185 USD
View
A
Retailer 3
-
$207 USD
View
Final sale: no returns
Retailer 4
-
$213 USD
View
Price last confirmed 62 days ago
A
Retailer 5
-
$214 USD
View
Retailer 6
-
$224 USD
View
Price last confirmed 41 days ago
A
Retailer 7
-
$229 USD
View
Retailer 8
-
$229 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$394 USD
View
A
Retailer 10
-
$396 USD
ZAR 6,392 ZAR
View
B+
Retailer 11
-
$404 USD
View
B+
Retailer 12
-
$414 USD
£326 GBP
View
B+
Retailer 13
-
$441 USD
€420 EUR
View
B+
Retailer 14
-
$476 USD
View
B+
Retailer 15
-
$505 USD
View
B+
Retailer 16
-
$506 USD
A$778 AUD
View
B+
Retailer 17
-
$559 USD
A$860 AUD
View
B+
Retailer 18
-
$618 USD
View
B
Retailer 19
-
$650 USD
View
Retailer 20
-
$731 USD
View
Price last confirmed 42 days ago
B
Retailer 21
-
$737 USD
View
B
Retailer 22
-
$791 USD
View
B
Retailer 23
-
$805 USD
View
Retailer 24
-
$1,077 USD
£848 GBP
View
Price last confirmed 14 days ago
Most Expensive
B
Reve Diamonds
E75548806 · Nov 1
$1,145 USD
View
24 more retailers have this diamond
Prices start from $185 USDSave up to $960 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
$185 USD