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Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6552974056

Certificate GIA 6552974056

Diamond specifications and retailer prices

From $5,258 AUD
As of November 6, 2026
Save $2,455 AUD (32%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,714 AUD at Jared · As of November 6, 2026
View at Jared

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 6552974056. Listed at 9 retailers as of November 6, 2026, with prices from $5,258 to $7,714, a $2,455 spread on the same certified stone. Jared lists it at $7,714. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6552974056
Dimensions7.27 × 7.32 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
7.27 mm7.32 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552974056
Side View
Table 59.0%Crown 35°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 62.4%

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: $7,714 AUD|Low: $5,258 AUD|High: $7,801 AUD|Avg: $6,695 AUD|-1.1%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$5,258 AUD
Retailer 7$6,076 AUD
Retailer 6$6,488 AUD
Retailer 3$6,807 AUD
Retailer 8$6,926 AUD
Retailer 4$7,466 AUD
Retailer 5$7,466 AUD
Jared$7,714 AUD

45 data points across 8 retailers

9 retailers$5,258 AUD to $7,714 AUD

A
Cheapest Retailer
-
$5,258 AUD
B+
Retailer 2
-
$6,076 AUD
View
Final sale: no returns
B+
Retailer 3
-
$6,488 AUD
View
B+
Retailer 4
-
$6,743 AUD
View
B+
Retailer 5
-
$6,807 AUD
View
B+
Retailer 6
-
$6,926 AUD
View
B
Retailer 7
-
$7,466 AUD
View
B
Retailer 8
-
$7,466 AUD
View
Most Expensive
B
Jared
160091726 · Nov 6
$7,714 AUD
$5,300 USD
View
8 more retailers have this diamond
Prices start from $5,258 AUDSave up to $2,455 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 Round
$5,258 AUD