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Radiant|Lab Grown|IGI

2.51ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG517226310

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

Certificate IGI LG517226310

Diamond specifications and retailer prices

From $2,757 CAD
As of November 6, 2026
Save $11,250 CAD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $17,151 CAD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 2.51ct lab-grown radiant diamond

This 2.51ct lab-grown radiant sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG517226310 or 517226310. Listed at 14 retailers as of November 5, 2026, with a 408% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517226310
Dimensions8.72 × 6.66 × 4.68 mm
L/W Ratio1.31
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
8.72 mm6.66 mm2.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517226310
Side View
Table 69.0%Crown 48°Girdle: STK-THKPavilion 31.9°Culet: NoneDepth 70.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,527 CAD|Low: $2,757 CAD|High: $17,151 CAD|Avg: $9,052 CAD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Reve Diamonds
November 7, 2026
Retailer 5$2,757 CAD
Retailer 4$5,653 CAD
Retailer 8$6,331 CAD
Retailer 6$6,558 CAD
Retailer 1$8,527 CAD
Retailer 3$8,697 CAD
Retailer 7$10,154 CAD
Retailer 2$14,007 CAD
Reve Diamonds$17,151 CAD

45 data points across 9 retailers

14 retailers$2,757 CAD to $14,007 CAD

B+
Cheapest Retailer
-
$2,757 CAD
B
Retailer 2
-
$5,653 CAD
View
B
Retailer 3
-
$5,925 CAD
View
B
Retailer 4
-
$5,963 CAD
View
B
Retailer 5
-
$6,331 CAD
View
Final sale: no returns
B
Retailer 6
-
$6,558 CAD
View
Retailer 7
-
$6,558 CAD
View
Price last confirmed 26 days ago
B
Retailer 8
-
$6,632 CAD
View
B
Retailer 9
-
$8,193 CAD
View
B
Retailer 10
-
$8,527 CAD
View
B
Retailer 11
-
$8,697 CAD
View
B
Retailer 12
-
$10,154 CAD
View
B
Retailer 13
-
$14,007 CAD
View
Most Expensive
Reve Diamonds
9D25E17C9 · Nov 6
$17,151 CAD
$12,194 USD
View
Price under review
13 more retailers have this diamond
Prices start from $2,757 CADSave up to $11,250 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.

B+
2.51ct Radiant
$2,757 CAD