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 $5,643 CAD
$4,040 USD
As of October 30, 2026
Save $22,853 CAD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $28,497 CAD 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 $5,643 to $28,497, a $22,853 spread on the same certified stone. Brilliant Earth lists it at $28,497. 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
Color
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

How it works →
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: Oct 30
Current: $28,497 CAD|Low: $5,417 CAD|High: $28,497 CAD|Avg: $10,571 CAD
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$5,643 CAD
Retailer 3$6,318 CAD
Retailer 11$6,546 CAD
Retailer 7$6,551 CAD
Retailer 13$6,687 CAD
Retailer 2$8,599 CAD
Retailer 8$8,682 CAD
Retailer 4$9,175 CAD
Retailer 6$10,132 CAD
Retailer 9$10,137 CAD
Retailer 12$16,550 CAD
Retailer 5$16,598 CAD
Brilliant Earth$28,497 CAD

43 data points across 13 retailers

20 retailers$5,643 CAD to $28,497 CAD

A
Cheapest Retailer
-
$5,643 CAD
$4,040 USD
A
Retailer 2
-
$5,914 CAD
$4,234 USD
View
A
Retailer 3
-
$6,318 CAD
$4,523 USD
View
Final sale: no returns
B+
Retailer 4
-
$6,546 CAD
$4,686 USD
View
Retailer 5
-
$6,546 CAD
$4,686 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$6,551 CAD
$4,690 USD
View
B+
Retailer 7
-
$6,687 CAD
$4,787 USD
View
B+
Retailer 8
-
$7,724 CAD
HK$43,200 HKD
View
B+
Retailer 9
-
$8,180 CAD
$5,856 USD
View
B+
Retailer 10
-
$8,599 CAD
£4,847 GBP
View
B+
Retailer 11
-
$8,682 CAD
$6,215 USD
View
B+
Retailer 12
-
$9,175 CAD
£5,172 GBP
View
B+
Retailer 13
-
$10,132 CAD
ZAR 117,171 ZAR
View
B+
Retailer 14
-
$10,137 CAD
$7,257 USD
View
B
Retailer 15
-
$13,708 CAD
$9,813 USD
View
B
Retailer 16
-
$16,550 CAD
$11,848 USD
View
Retailer 17
-
$16,598 CAD
$11,882 USD
View
Price last confirmed 18 days ago
B
Retailer 18
-
$18,181 CAD
$13,015 USD
View
B
Retailer 19
-
$23,239 CAD
$16,636 USD
View
Most Expensive
B
Brilliant Earth
10597375A · Oct 29
$28,497 CAD
$20,400 USD
View
19 more retailers have this diamond
Prices start from $5,643 CADSave up to $22,853 CAD

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
$5,643 CAD