Radiant|Lab Grown|IGI

12.56ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG603334337

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

Certificate IGI LG603334337

Diamond specifications and retailer prices

From $5,165 SGD
$4,040 USD
As of October 30, 2026
Save $20,915 SGD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $26,079 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 12.56ct lab-grown radiant diamond

This 12.56ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG603334337 or 603334337. Listed at 20 retailers as of October 29, 2026, with prices from $5,165 to $26,079, a $20,915 spread on the same certified stone. Brilliant Earth lists it at $26,079. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.56
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG603334337
Dimensions14.83 × 12.00 × 8.25 mm
L/W Ratio1.24
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
14.83 mm12.00 mm12.56 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG603334337
Side View
Table 69.0%Crown 45.3°Girdle: MediumPavilion 37.8°Culet: NoneDepth 68.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $26,079 SGD|Low: $4,958 SGD|High: $26,079 SGD|Avg: $9,667 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 10$5,165 SGD
Retailer 3$5,782 SGD
Retailer 11$5,991 SGD
Retailer 7$5,996 SGD
Retailer 13$6,120 SGD
Retailer 2$7,870 SGD
Retailer 8$7,945 SGD
Retailer 4$8,397 SGD
Retailer 6$9,272 SGD
Retailer 9$9,277 SGD
Retailer 12$15,146 SGD
Retailer 5$15,190 SGD
Brilliant Earth$26,079 SGD

41 data points across 13 retailers

20 retailers$5,165 SGD to $26,079 SGD

A
Cheapest Retailer
-
$5,165 SGD
$4,040 USD
A
Retailer 2
-
$5,413 SGD
$4,234 USD
View
A
Retailer 3
-
$5,782 SGD
$4,523 USD
View
Final sale: no returns
B+
Retailer 4
-
$5,991 SGD
$4,686 USD
View
Retailer 5
-
$5,991 SGD
$4,686 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$5,996 SGD
$4,690 USD
View
B+
Retailer 7
-
$6,120 SGD
$4,787 USD
View
B+
Retailer 8
-
$7,069 SGD
HK$43,200 HKD
View
B+
Retailer 9
-
$7,486 SGD
$5,856 USD
View
B+
Retailer 10
-
$7,870 SGD
£4,847 GBP
View
B+
Retailer 11
-
$7,945 SGD
$6,215 USD
View
B+
Retailer 12
-
$8,397 SGD
£5,172 GBP
View
B+
Retailer 13
-
$9,272 SGD
ZAR 117,171 ZAR
View
B+
Retailer 14
-
$9,277 SGD
$7,257 USD
View
B
Retailer 15
-
$12,545 SGD
$9,813 USD
View
B
Retailer 16
-
$15,146 SGD
$11,848 USD
View
Retailer 17
-
$15,190 SGD
$11,882 USD
View
Price last confirmed 19 days ago
B
Retailer 18
-
$16,639 SGD
$13,015 USD
View
B
Retailer 19
-
$21,268 SGD
$16,636 USD
View
Most Expensive
B
Brilliant Earth
10597375A · Oct 29
$26,079 SGD
$20,400 USD
View
19 more retailers have this diamond
Prices start from $5,165 SGDSave up to $20,915 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
12.56ct Radiant
$5,165 SGD