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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2557794801

Certificate GIA 2557794801

Diamond specifications and retailer prices

From $5,213 AUD
As of November 4, 2026
Save $8,759 AUD (63%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $13,972 AUD at Jared · As of November 4, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557794801. Listed at 18 retailers as of November 4, 2026, with prices from $5,213 to $13,972, a $8,759 spread on the same certified stone. Jared lists it at $13,972. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557794801
Dimensions7.40 × 7.35 × 4.58 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cloud, Cavity
Top View
7.40 mm7.35 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557794801
Side View
Table 56.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.6%

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 4
Current: $13,972 AUD|Low: $5,213 AUD|High: $13,972 AUD|Avg: $7,443 AUD
Jared
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
November 5, 2026
Retailer 13$5,213 AUD
Retailer 11$5,245 AUD
Retailer 12$5,500 AUD
Retailer 2$6,283 AUD
Retailer 3$6,510 AUD
Retailer 4$6,510 AUD
Retailer 5$6,510 AUD
Retailer 15$6,727 AUD
Retailer 14$7,414 AUD
Retailer 7$7,511 AUD
Retailer 9$8,054 AUD
Retailer 8$10,403 AUD
Retailer 6$11,342 AUD
Retailer 10$13,521 AUD
Jared$13,972 AUD

23 data points across 15 retailers

18 retailers$5,213 AUD to $13,972 AUD

Retailer 1
-
$4,317 AUD
Price last confirmed 82 days ago
A
Retailer 2
-
$5,213 AUD
View
A
Retailer 3
-
$5,245 AUD
View
A
Retailer 4
-
$5,500 AUD
View
Final sale: no returns
B+
Retailer 5
-
$6,283 AUD
View
Retailer 6
-
$6,510 AUD
View
Price last confirmed 8 days ago
Retailer 7
-
$6,510 AUD
View
Price last confirmed 8 days ago
Retailer 8
-
$6,510 AUD
View
Price last confirmed 8 days ago
Retailer 9
-
$6,727 AUD
View
Price last confirmed 7 days ago
Retailer 10
-
$6,840 AUD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$7,414 AUD
View
B+
Retailer 12
-
$7,511 AUD
View
B+
Retailer 13
-
$8,054 AUD
View
Retailer 14
-
$8,376 AUD
View
Price last confirmed 70 days ago
B
Retailer 15
-
$10,403 AUD
View
Retailer 16
-
$11,342 AUD
View
Price last confirmed 7 days ago
C
Retailer 17
-
$13,521 AUD
View
Most Expensive
B
Jared
160318552 · Nov 4
$13,972 AUD
$9,600 USD
View
17 more retailers have this diamond
Prices start from $5,213 AUDSave up to $8,759 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 Round
$5,213 AUD