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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 $764 SGD
$596 USD
As of October 27, 2026
Save $4,132 SGD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,896 SGD 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 $764 to $4,896, a $4,132 spread on the same certified stone. Brilliant Earth lists it at $4,896. 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
Colour
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: $4,896 SGD|Low: $733 SGD|High: $4,896 SGD|Avg: $1,647 SGD|+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 30, 2026
Retailer 3$764 SGD
Retailer 8$856 SGD
Retailer 4$947 SGD
Retailer 6$947 SGD
Retailer 12$1,034 SGD
Retailer 10$1,115 SGD
Retailer 2$1,190 SGD
Retailer 7$1,269 SGD
Retailer 16$1,339 SGD
Retailer 14$1,374 SGD
Retailer 9$1,375 SGD
Retailer 15$2,352 SGD
Retailer 5$2,493 SGD
Retailer 13$2,519 SGD
Retailer 11$4,120 SGD
Brilliant Earth$4,896 SGD

37 data points across 16 retailers

21 retailers$764 SGD to $4,896 SGD

A
Cheapest Retailer
-
$764 SGD
$596 USD
A
Retailer 2
-
$856 SGD
$668 USD
View
Final sale: no returns
A
Retailer 3
-
$856 SGD
$668 USD
View
B+
Retailer 4
-
$947 SGD
$739 USD
View
Retailer 5
-
$947 SGD
$739 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$1,034 SGD
HK$6,300 HKD
View
B+
Retailer 7
-
$1,115 SGD
$870 USD
View
B+
Retailer 8
-
$1,190 SGD
£731 GBP
View
B+
Retailer 9
-
$1,269 SGD
$990 USD
View
B+
Retailer 10
-
$1,310 SGD
$1,022 USD
View
B+
Retailer 11
-
$1,339 SGD
$1,045 USD
View
B+
Retailer 12
-
$1,374 SGD
€1,021 EUR
View
B+
Retailer 13
-
$1,375 SGD
£845 GBP
View
B
Retailer 14
-
$2,352 SGD
$1,835 USD
View
B
Retailer 15
-
$2,493 SGD
$1,945 USD
View
Retailer 16
-
$2,519 SGD
$1,965 USD
View
Price last confirmed 8 days ago
B
Retailer 17
-
$2,784 SGD
$2,172 USD
View
B
Retailer 18
-
$3,066 SGD
$2,392 USD
View
B
Retailer 19
-
$3,148 SGD
£1,934 GBP
View
B
Retailer 20
-
$4,120 SGD
£2,531 GBP
View
Most Expensive
C
Brilliant Earth
11751828A · Oct 29
$4,896 SGD
$3,820 USD
View
20 more retailers have this diamond
Prices start from $764 SGDSave up to $4,132 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
2.51ct Radiant
$764 SGD