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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 1543922780

Certificate GIA 1543922780

Diamond specifications and retailer prices

From $2,753 AUD
SGD 2,607 SGD
As of October 31, 2026
Save $2,851 AUD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,604 AUD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 1543922780. Listed at 10 retailers as of October 26, 2026, with prices from $2,753 to $5,604, a $2,851 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,604. 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
OriginNatural
Grading LabGIA
CertificateGIA 1543922780
Dimensions7.68 × 5.81 × 3.94 mm
L/W Ratio1.32
Culet sizeNone
Top View
7.68 mm5.81 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543922780
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.9%

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 31
Current: $3,549 AUD|Low: $2,753 AUD|High: $5,927 AUD|Avg: $3,984 AUD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 2, 2026
Retailer 6$2,753 AUD
Retailer 3$3,256 AUD
Retailer 2$3,283 AUD
Retailer 1$3,549 AUD
Retailer 9$3,576 AUD
Retailer 7$3,873 AUD
Retailer 4$3,895 AUD
Retailer 8$4,066 AUD
Retailer 5$5,004 AUD
Wholesale Diamonds Direct$5,604 AUD

36 data points across 10 retailers

10 retailers$2,753 AUD to $5,604 AUD

A
Cheapest Retailer
-
$2,753 AUD
SGD 2,607 SGD
A
Retailer 2
-
$3,256 AUD
$2,282 USD
View
A
Retailer 3
-
$3,283 AUD
$2,301 USD
View
A
Retailer 4
-
$3,549 AUD
£1,958 GBP
View
A
Retailer 5
-
$3,576 AUD
SGD 3,387 SGD
View
A
Retailer 6
-
$3,873 AUD
$2,714 USD
View
A
Retailer 7
-
$3,895 AUD
$2,730 USD
View
A
Retailer 8
-
$4,066 AUD
$2,849 USD
View
A
Retailer 9
-
$5,004 AUD
$3,507 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
525257240 · Oct 26
$5,604 AUD
$3,927 USD
View
9 more retailers have this diamond
Prices start from $2,753 AUDSave up to $2,851 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
$2,753 AUD