Round|Natural|GIA

5.15ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 3205247575

Certificate GIA 3205247575

Diamond specifications and retailer prices

From $70,195 USD
As of November 1, 2026
Save $21,441 USD (23%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $91,636 USD at Yorxs · As of November 1, 2026
View at Yorxs

About this 5.15ct natural round diamond

This 5.15ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3205247575. Listed at 7 retailers as of November 1, 2026, with prices from $70,195 to $91,636, a $21,441 spread on the same certified stone. Yorxs lists it at $91,636. 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

5.15
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 3205247575
Dimensions11.02 × 11.09 × 6.92 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
11.02 mm11.09 mm5.15 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3205247575
Side View
Table 56.0%Crown 32.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.6%

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: Nov 1
Current: $84,083 USD|Low: $69,539 USD|High: $95,594 USD|Avg: $80,635 USD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 3, 2026
Retailer 3$70,195 USD
Retailer 2$76,493 USD
Retailer 5$80,510 USD
Retailer 6$80,510 USD
Retailer 4$83,190 USD
Retailer 1$84,083 USD
Yorxs$91,636 USD

37 data points across 7 retailers

7 retailers$70,195 USD to $91,636 USD

B+
Cheapest Retailer
-
$70,195 USD
B+
Retailer 2
-
$76,493 USD
View
Final sale: no returns
B
Retailer 3
-
$80,510 USD
View
B
Retailer 4
-
$80,510 USD
View
B
Retailer 5
-
$83,190 USD
View
B+
Retailer 6
-
$84,083 USD
£66,207 GBP
View
Most Expensive
B
Yorxs
900-10-33244 · Nov 1
$91,636 USD
€87,272 EUR
View
6 more retailers have this diamond
Prices start from $70,195 USDSave up to $21,441 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+
5.15ct Round
$70,195 USD