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Radiant|Lab Grown|GIA

2.51ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • GIA 6501487009

Certificate GIA 6501487009

Diamond specifications and retailer prices

From $834 CAD
$596 USD
As of October 27, 2026
Save $4,512 CAD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,346 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.51ct lab-grown radiant diamond

This 2.51ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6501487009. Listed at 21 retailers as of October 27, 2026, with prices from $834 to $5,346, a $4,512 spread on the same certified stone. Brilliant Earth lists it at $5,346. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
E
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6501487009
Dimensions9.87 × 6.65 × 4.44 mm
L/W Ratio1.48
Top View
9.87 mm6.65 mm2.51 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6501487009
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.8%

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 27
Current: $5,346 CAD|Low: $801 CAD|High: $5,346 CAD|Avg: $1,793 CAD|+49.8%
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
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 3$834 CAD
Retailer 8$935 CAD
Retailer 4$1,034 CAD
Retailer 6$1,034 CAD
Retailer 12$1,129 CAD
Retailer 10$1,218 CAD
Retailer 9$1,303 CAD
Retailer 7$1,386 CAD
Retailer 16$1,463 CAD
Retailer 14$1,500 CAD
Retailer 2$1,501 CAD
Retailer 15$2,568 CAD
Retailer 5$2,722 CAD
Retailer 13$2,750 CAD
Retailer 11$4,499 CAD
Brilliant Earth$5,346 CAD

36 data points across 16 retailers

21 retailers$834 CAD to $5,346 CAD

A
Cheapest Retailer
-
$834 CAD
$596 USD
A
Retailer 2
-
$935 CAD
$668 USD
View
Final sale: no returns
A
Retailer 3
-
$935 CAD
$668 USD
View
B+
Retailer 4
-
$1,034 CAD
$739 USD
View
B+
Retailer 5
-
$1,034 CAD
$739 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$1,129 CAD
HK$6,300 HKD
View
B+
Retailer 7
-
$1,218 CAD
$870 USD
View
B+
Retailer 8
-
$1,303 CAD
£733 GBP
View
B+
Retailer 9
-
$1,386 CAD
$990 USD
View
B+
Retailer 10
-
$1,430 CAD
$1,022 USD
View
B+
Retailer 11
-
$1,463 CAD
$1,045 USD
View
B+
Retailer 12
-
$1,500 CAD
€1,021 EUR
View
B+
Retailer 13
-
$1,501 CAD
£845 GBP
View
B
Retailer 14
-
$2,568 CAD
$1,835 USD
View
B
Retailer 15
-
$2,722 CAD
$1,945 USD
View
B
Retailer 16
-
$2,750 CAD
$1,965 USD
View
Price last confirmed 8 days ago
B
Retailer 17
-
$3,040 CAD
$2,172 USD
View
B
Retailer 18
-
$3,348 CAD
$2,392 USD
View
B
Retailer 19
-
$3,437 CAD
£1,934 GBP
View
B
Retailer 20
-
$4,499 CAD
£2,531 GBP
View
Most Expensive
C
Brilliant Earth
11751828A · Oct 29
$5,346 CAD
$3,820 USD
View
20 more retailers have this diamond
Prices start from $834 CADSave up to $4,512 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
2.51ct Radiant
$834 CAD