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Round|Natural|GIA

3.15ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1509870766

Certificate GIA 1509870766

Diamond specifications and retailer prices

From $46,563 NZD
$26,199 USD
As of November 2, 2026
Save $24,406 NZD (34%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $70,970 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 3.15ct natural round diamond

This 3.15ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1509870766. Listed at 6 retailers as of November 1, 2026, with prices from $46,563 to $70,970, a $24,406 spread on the same certified stone. MOH London lists it at $70,970. 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

3.15
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1509870766
Dimensions9.25 × 9.33 × 5.83 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Key to symbols
Crystal, Cloud, Needle
Top View
9.25 mm9.33 mm3.15 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1509870766
Side View
Table 58.0%Crown 35.5°Girdle: STK-STKPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $70,970 NZD|Low: $40,645 NZD|High: $71,823 NZD|Avg: $52,055 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4$46,563 NZD
Retailer 5$47,335 NZD
Retailer 3$48,069 NZD
Retailer 6$48,348 NZD
Retailer 2$53,563 NZD
MOH London$70,970 NZD

26 data points across 6 retailers

6 retailers$46,563 NZD to $70,970 NZD

B+
Cheapest Retailer
-
$46,563 NZD
$26,199 USD
B+
Retailer 2
-
$47,335 NZD
$26,633 USD
View
B+
Retailer 3
-
$48,069 NZD
$27,046 USD
View
Final sale: no returns
B+
Retailer 4
-
$48,348 NZD
$27,203 USD
View
B+
Retailer 5
-
$53,563 NZD
€28,702 EUR
View
Most Expensive
B
MOH London
A2270A107 · Nov 1
$70,970 NZD
£31,442 GBP
View
5 more retailers have this diamond
Prices start from $46,563 NZDSave up to $24,406 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.

B+
3.15ct Round
$46,563 NZD