Round|Natural|GIA

3.18ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5221017633

Certificate GIA 5221017633

Diamond specifications and retailer prices

From €29,131 EUR
$32,545 USD
As of October 30, 2026
Save €8,210 EUR (22%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €37,341 EUR at Yorxs · As of November 1, 2026
View at Yorxs

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 5221017633. Listed at 7 retailers as of October 30, 2026, with prices from €29,131 to €37,341, a €8,210 spread on the same certified stone. Yorxs lists it at €37,341. 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5221017633
Dimensions9.29 × 9.35 × 5.85 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
9.29 mm9.35 mm3.18 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5221017633
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.7%

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: Oct 30
Current: €34,257 EUR|Low: €28,336 EUR|High: €40,418 EUR|Avg: €33,246 EUR|-10.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 1, 2026
Retailer 3€29,131 EUR
Retailer 2€31,170 EUR
Retailer 5€33,306 EUR
Retailer 6€33,306 EUR
Retailer 1€34,257 EUR
Retailer 4€34,416 EUR
Yorxs€37,341 EUR

38 data points across 7 retailers

7 retailers€29,131 EUR to €37,341 EUR

B+
Cheapest Retailer
-
€29,131 EUR
$32,545 USD
B+
Retailer 2
-
€31,170 EUR
$34,823 USD
View
Final sale: no returns
B+
Retailer 3
-
€33,306 EUR
$37,210 USD
View
B+
Retailer 4
-
€33,306 EUR
$37,210 USD
View
B+
Retailer 5
-
€34,257 EUR
£30,136 GBP
View
B
Retailer 6
-
€34,416 EUR
$38,450 USD
View
Most Expensive
B
Yorxs
900-10-32988 · Nov 1
€37,341 EUR
View
6 more retailers have this diamond
Prices start from €29,131 EURSave up to €8,210 EUR

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+
3.18ct Round
€29,131 EUR