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Round|Natural|GIA

3.15ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2235563143

Certificate GIA 2235563143

Diamond specifications and retailer prices

From £23,957 GBP
$32,100 USD
As of October 30, 2026
Save £799 GBP (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £24,756 GBP at Jared · As of October 30, 2026
View at Jared

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235563143. Listed at 3 retailers as of October 30, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2235563143
Dimensions9.49 × 9.54 × 5.71 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Culet sizeNone
Top View
9.49 mm9.54 mm3.15 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235563143
Side View
Table 62.0%Crown 33°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 60.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £24,756 GBP|Low: £15,764 GBP|High: £27,359 GBP|Avg: £22,292 GBP
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 1, 2026
Retailer 8£15,764 GBP
Retailer 5£19,445 GBP
Retailer 2£22,639 GBP
Retailer 4£23,171 GBP
Retailer 6£23,957 GBP
Retailer 7£23,957 GBP
Jared£24,756 GBP
Retailer 3£25,987 GBP

56 data points across 8 retailers

3 retailers£23,957 GBP to £24,756 GBP

B
Cheapest Retailer
-
£23,957 GBP
$32,100 USD
B
Retailer 2
-
£23,957 GBP
$32,100 USD
View
Most Expensive
B
Jared
154189171 · Oct 30
£24,756 GBP
$33,170 USD
View
2 more retailers have this diamond
Prices start from £23,957 GBPSave up to £799 GBP

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
£23,957 GBP