Radiant|Natural|GIA

1.51ct I FL Radiant Natural Diamond

GD • I/FL • GIA 6521262325

Certificate GIA 6521262325

Diamond specifications and retailer prices

From $6,640 AUD
As of November 6, 2026
Save $5,759 AUD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,399 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6521262325. Listed at 13 retailers as of November 4, 2026, with prices from $6,640 to $12,399, a $5,759 spread on the same certified stone. MOH London lists it at $12,399. 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

1.51
Carat
I
Colour
FL
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6521262325
Dimensions6.12 × 5.85 × 4.20 mm
L/W Ratio1.05
Top View
6.12 mm5.85 mm1.51 ctI / FL
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521262325
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.8%

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: Nov 6
Current: $12,399 AUD|Low: $6,640 AUD|High: $12,582 AUD|Avg: $8,782 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$6,640 AUD
Retailer 7$6,667 AUD
Retailer 6$7,056 AUD
Retailer 5$7,644 AUD
Retailer 2$8,150 AUD
Retailer 8$8,452 AUD
Retailer 10$9,137 AUD
Retailer 3$9,169 AUD
Retailer 4$10,295 AUD
MOH London$12,399 AUD

46 data points across 10 retailers

13 retailers$6,640 AUD to $12,399 AUD

A
Cheapest Retailer
-
$6,640 AUD
A
Retailer 2
-
$6,667 AUD
View
A
Retailer 3
-
$7,056 AUD
View
Final sale: no returns
A
Retailer 4
-
$7,175 AUD
View
A
Retailer 5
-
$7,564 AUD
View
Retailer 6
-
$7,644 AUD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$7,830 AUD
View
A
Retailer 8
-
$8,150 AUD
View
Retailer 9
-
$8,452 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
$9,137 AUD
View
A
Retailer 11
-
$9,169 AUD
View
B+
Retailer 12
-
$10,295 AUD
View
Most Expensive
B+
MOH London
DC8D7E827 · Nov 4
$12,399 AUD
£6,708 GBP
View
12 more retailers have this diamond
Prices start from $6,640 AUDSave up to $5,759 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
1.51ct Radiant
$6,640 AUD