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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 $848 AUD
$596 USD
As of October 30, 2026
Save $3,728 AUD (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,576 AUD at MOH London · As of October 26, 2026
View at MOH London

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 26, 2026, with prices from $848 to $4,576, a $3,728 spread on the same certified stone. MOH London lists it at $4,576. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,576 AUD|Low: $814 AUD|High: $5,438 AUD|Avg: $1,826 AUD|-1.1%
MOH London
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 31, 2026
Retailer 3$848 AUD
Retailer 8$951 AUD
Retailer 4$1,052 AUD
Retailer 6$1,052 AUD
Retailer 12$1,148 AUD
Retailer 11$1,239 AUD
Retailer 10$1,322 AUD
Retailer 7$1,409 AUD
Retailer 16$1,488 AUD
Retailer 14$1,526 AUD
Retailer 2$1,527 AUD
Retailer 15$2,612 AUD
Retailer 5$2,769 AUD
Retailer 13$2,797 AUD
Retailer 9$3,474 AUD
MOH London$4,576 AUD

38 data points across 16 retailers

21 retailers$848 AUD to $4,576 AUD

A
Cheapest Retailer
-
$848 AUD
$596 USD
A
Retailer 2
-
$951 AUD
$668 USD
View
Final sale: no returns
A
Retailer 3
-
$951 AUD
$668 USD
View
B+
Retailer 4
-
$1,052 AUD
$739 USD
View
Retailer 5
-
$1,052 AUD
$739 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$1,148 AUD
HK$6,300 HKD
View
B+
Retailer 7
-
$1,239 AUD
$870 USD
View
B+
Retailer 8
-
$1,322 AUD
£731 GBP
View
B+
Retailer 9
-
$1,409 AUD
$990 USD
View
B+
Retailer 10
-
$1,455 AUD
$1,022 USD
View
B+
Retailer 11
-
$1,488 AUD
$1,045 USD
View
Retailer 12
-
$1,526 AUD
€1,021 EUR
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$1,527 AUD
£845 GBP
View
B
Retailer 14
-
$2,612 AUD
$1,835 USD
View
B
Retailer 15
-
$2,769 AUD
$1,945 USD
View
Retailer 16
-
$2,797 AUD
$1,965 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$3,093 AUD
$2,172 USD
View
B
Retailer 18
-
$3,405 AUD
$2,392 USD
View
B
Retailer 19
-
$3,474 AUD
$2,440 USD
View
B
Retailer 20
-
$3,496 AUD
£1,934 GBP
View
Most Expensive
B
MOH London
6501487009 · Oct 26
$4,576 AUD
£2,531 GBP
View
20 more retailers have this diamond
Prices start from $848 AUDSave up to $3,728 AUD

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
$848 AUD