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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2245026927

Certificate GIA 2245026927

Diamond specifications and retailer prices

From $5,587 NZD
HK$24,600 HKD
As of November 1, 2026
Save $7,118 NZD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,966 NZD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

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 2245026927. Listed at 16 retailers as of November 1, 2026, with a 127% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2245026927
Dimensions7.27 × 7.31 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.27 mm7.31 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2245026927
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.8%

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 1
Current: $9,776 NZD|Low: $5,496 NZD|High: $12,921 NZD|Avg: $8,010 NZD|-1.1%
Retailer 1
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
November 2, 2026
Retailer 12$5,587 NZD
Retailer 2$5,782 NZD
Retailer 10$5,876 NZD
Retailer 3$6,040 NZD
Retailer 8$6,421 NZD
Retailer 11$6,512 NZD
Retailer 7$6,765 NZD
Retailer 5$6,985 NZD
Retailer 9$7,064 NZD
Retailer 6$7,807 NZD
Retailer 14$8,587 NZD
Retailer 1$9,776 NZD
Retailer 4$11,600 NZD
Retailer 13$12,704 NZD

36 data points across 14 retailers

16 retailers$5,587 NZD to $12,704 NZD

A
Cheapest Retailer
-
$5,587 NZD
HK$24,600 HKD
A
Retailer 2
-
$5,782 NZD
$3,259 USD
View
A
Retailer 3
-
$5,876 NZD
$3,312 USD
View
A
Retailer 4
-
$6,040 NZD
$3,404 USD
View
B+
Retailer 5
-
$6,421 NZD
$3,619 USD
View
Final sale: no returns
A
Retailer 6
-
$6,512 NZD
A$5,646 AUD
View
A
Retailer 7
-
$6,765 NZD
$3,813 USD
View
Retailer 8
-
$6,985 NZD
SGD 5,320 SGD
View
Price last confirmed 13 days ago
B+
Retailer 9
-
$7,064 NZD
£3,135 GBP
View
B+
Retailer 10
-
$7,563 NZD
A$6,558 AUD
View
Retailer 11
-
$7,807 NZD
$4,400 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$8,587 NZD
€4,609 EUR
View
B
Retailer 13
-
$9,776 NZD
$5,510 USD
View
B
Retailer 14
-
$11,600 NZD
$6,538 USD
View
B
Retailer 15
-
$12,704 NZD
£5,638 GBP
View
Most Expensive
NZ Jewellers
2655f6ef-5654-4938-861c-cb17c05216c5 · Sep 25
$13,966 NZD
$7,871 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from $5,587 NZDSave up to $7,118 NZD

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
$5,587 NZD