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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 6472510095

Certificate GIA 6472510095

Diamond specifications and retailer prices

From $3,720 AUD
As of November 5, 2026
Save $3,929 AUD (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,649 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6472510095. Listed at 12 retailers as of November 4, 2026, with prices from $3,720 to $7,649, a $3,929 spread on the same certified stone. MOH London lists it at $7,649. 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

1.51
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.6°
Pavilion angle60.4°
OriginNatural
Grading LabGIA
CertificateGIA 6472510095
Dimensions6.24 × 6.20 × 4.17 mm
L/W Ratio1.01
Top View
6.24 mm6.20 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6472510095
Side View
Table 65.0%Crown 48.6°Girdle: ThickPavilion 60.4°Culet: NoneDepth 67.3%

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 5
Current: $7,649 AUD|Low: $3,685 AUD|High: $8,166 AUD|Avg: $5,071 AUD|-5.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 8$3,720 AUD
Retailer 9$3,834 AUD
Retailer 7$4,068 AUD
Retailer 5$4,199 AUD
Retailer 3$4,299 AUD
Retailer 10$4,701 AUD
Retailer 12$4,701 AUD
Retailer 2$4,745 AUD
Retailer 11$4,861 AUD
Retailer 4$5,136 AUD
Retailer 6$5,596 AUD
MOH London$7,649 AUD

46 data points across 12 retailers

12 retailers$3,720 AUD to $7,649 AUD

A
Cheapest Retailer
-
$3,720 AUD
A
Retailer 2
-
$3,834 AUD
View
Final sale: no returns
A
Retailer 3
-
$4,068 AUD
View
A
Retailer 4
-
$4,199 AUD
View
Retailer 5
-
$4,299 AUD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$4,701 AUD
View
A
Retailer 7
-
$4,701 AUD
View
A
Retailer 8
-
$4,745 AUD
View
A
Retailer 9
-
$4,861 AUD
View
Retailer 10
-
$5,136 AUD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
$5,596 AUD
View
Most Expensive
B
MOH London
E61DA6E62 · Nov 4
$7,649 AUD
£4,138 GBP
View
11 more retailers have this diamond
Prices start from $3,720 AUDSave up to $3,929 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
$3,720 AUD