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Radiant|Lab Grown|IGI

1.21ct D VVS1 Radiant Lab Grown Diamond

EX • D/VVS1 • IGI LG731566581

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG731566581

Diamond specifications and retailer prices

From $257 SGD
As of November 4, 2026
Save $1,315 SGD (84%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $1,572 SGD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG731566581 or 731566581. Listed at 29 retailers as of November 4, 2026, with prices from $257 to $1,572, a $1,315 spread on the same certified stone. Brilliant Earth lists it at $1,572. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731566581
Dimensions5.18 × 5.18 × 3.41 mm
L/W Ratio1.00
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
5.18 mm5.18 mm1.21 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731566581
Side View
Table 64.0%Crown 43.5°Girdle: Slightly ThickPavilion 34.2°Culet: NoneDepth 65.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $1,572 SGD|Low: $257 SGD|High: $1,764 SGD|Avg: $847 SGD|-10.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 12$257 SGD
Retailer 5$286 SGD
Retailer 3$450 SGD
Retailer 9$541 SGD
Retailer 7$548 SGD
Retailer 2$578 SGD
Retailer 6$776 SGD
Retailer 11$1,026 SGD
Retailer 4$1,196 SGD
Retailer 10$1,367 SGD
Retailer 8$1,487 SGD
Brilliant Earth$1,572 SGD

42 data points across 12 retailers

29 retailers$257 SGD to $1,572 SGD

A
Cheapest Retailer
-
$257 SGD
Retailer 2
-
$257 SGD
View
Price last confirmed 27 days ago
Retailer 3
-
$257 SGD
View
Price last confirmed 35 days ago
A
Retailer 4
-
$286 SGD
View
Final sale: no returns
Retailer 5
-
$298 SGD
View
Price last confirmed 38 days ago
Retailer 6
-
$314 SGD
View
Price last confirmed 36 days ago
Retailer 7
-
$318 SGD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$376 SGD
View
B+
Retailer 9
-
$450 SGD
View
A
Retailer 10
-
$541 SGD
View
A
Retailer 11
-
$548 SGD
View
Retailer 12
-
$569 SGD
View
Price last confirmed 20 days ago
A
Retailer 13
-
$578 SGD
View
A
Retailer 14
-
$630 SGD
View
A
Retailer 15
-
$680 SGD
View
B+
Retailer 16
-
$741 SGD
View
B+
Retailer 17
-
$776 SGD
View
B+
Retailer 18
-
$1,024 SGD
View
Retailer 19
-
$1,024 SGD
View
Price last confirmed 35 days ago
Retailer 20
-
$1,024 SGD
View
Price last confirmed 25 days ago
B+
Retailer 21
-
$1,026 SGD
View
B+
Retailer 22
-
$1,084 SGD
View
B+
Retailer 23
-
$1,091 SGD
View
B
Retailer 24
-
$1,141 SGD
View
Retailer 25
-
$1,196 SGD
View
Price last confirmed 30 days ago
Retailer 26
-
$1,367 SGD
View
Price last confirmed 17 days ago
B
Retailer 27
-
$1,487 SGD
View
B
Retailer 28
-
$1,528 SGD
View
Most Expensive
B
Brilliant Earth
15998864A · Nov 4
$1,572 SGD
$1,230 USD
View
28 more retailers have this diamond
Prices start from $257 SGDSave up to $1,315 SGD

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 Radiant
$257 SGD