Round|Natural|GIA

3.15ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5556007603

Certificate GIA 5556007603

Diamond specifications and retailer prices

From $25,276 USD
As of October 30, 2026
Save $18,639 USD (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $43,915 USD at MOH London · As of October 29, 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 5556007603. Listed at 10 retailers as of October 29, 2026, with prices from $25,276 to $43,915, a $18,639 spread on the same certified stone. MOH London lists it at $43,915. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5556007603
Dimensions9.25 × 9.33 × 5.85 mm
L/W Ratio1.01
Top View
9.25 mm9.33 mm3.15 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556007603
Side View
Table 56.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $43,915 USD|Low: $25,276 USD|High: $44,953 USD|Avg: $32,349 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 4$25,276 USD
Retailer 5$26,998 USD
Retailer 3$30,540 USD
Retailer 7$30,540 USD
Retailer 6$31,560 USD
Retailer 8$32,525 USD
Retailer 2$34,212 USD
MOH London$43,915 USD

32 data points across 8 retailers

10 retailers$25,276 USD to $43,915 USD

B+
Cheapest Retailer
-
$25,276 USD
B+
Retailer 2
-
$26,998 USD
View
Retailer 3
-
$29,626 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$29,863 USD
View
Price last confirmed 31 days ago
B
Retailer 5
-
$30,540 USD
View
B
Retailer 6
-
$30,540 USD
View
Retailer 7
-
$30,811 USD
View
Price last confirmed 32 days ago
B+
Retailer 8
-
$31,560 USD
View
B
Retailer 9
-
$34,212 USD
€32,583 EUR
View
Most Expensive
B
MOH London
340465475 · Oct 29
$43,915 USD
£34,579 GBP
View
9 more retailers have this diamond
Prices start from $25,276 USDSave up to $18,639 USD

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
$25,276 USD