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3.18ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554362699

Certificate GIA 2554362699

Diamond specifications and retailer prices

From €45,438 EUR
$50,764 USD
As of November 1, 2026
2 retailers carry this diamond
Most expensive: €45,438 EUR at Diamonds Direct
View at Diamonds Direct

About this 3.18ct natural round diamond

This 3.18ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554362699. Listed at 2 retailers as of November 1, 2026. 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

3.18
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554362699
Dimensions9.32 × 9.37 × 5.86 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
9.32 mm9.37 mm3.18 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554362699
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°CuletDepth 62.7%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 1
Current: €45,438 EUR|Low: €28,974 EUR|High: €64,615 EUR|Avg: €40,359 EUR|+8.9%
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2€28,974 EUR
Retailer 3€31,161 EUR
Retailer 6€34,844 EUR
Retailer 4€36,893 EUR
Diamonds Direct€45,438 EUR
Retailer 5€64,615 EUR

28 data points across 6 retailers

2 retailers

Retailer 1
-
€28,974 EUR
$32,370 USD
Price last confirmed 14 days ago
Most Expensive
C
Diamonds Direct
1014396 · Nov 1
€45,438 EUR
$50,764 USD
View
1 more retailer has this diamond

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.

C
3.18ct Round
€45,438 EUR