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Round|Natural|GIA

2.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2564380265

Certificate GIA 2564380265

Diamond specifications and retailer prices

From €17,283 EUR
SGD 26,196 SGD
As of October 31, 2026
Save €1,537 EUR (8%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €18,820 EUR at The Perfect Carat · As of November 2, 2026
View at The Perfect Carat

About this 2.55ct natural round diamond

This 2.55ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564380265. Listed at 2 retailers as of October 31, 2026, with a relatively tight 9% 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

2.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2564380265
Dimensions8.78 × 8.73 × 5.39 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Needle, Cloud
Top View
8.78 mm8.73 mm2.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2564380265
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.8°CuletDepth 61.5%

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 31
Current: €17,283 EUR|Low: €17,283 EUR|High: €18,820 EUR|Avg: €17,796 EUR
Retailer 1
The Perfect Carat
November 2, 2026
Retailer 1€17,283 EUR
The Perfect Carat€18,820 EUR

2 data points across 2 retailers

2 retailers€17,283 EUR to €18,820 EUR

B+
Cheapest Retailer
-
€17,283 EUR
SGD 26,196 SGD
Most Expensive
B+
The Perfect Carat
tpc_801dd91b-3c6f-4f95-be7b-a565caf89b12 · Nov 2
€18,820 EUR
$21,109 USD
View
1 more retailer has this diamond
Prices start from €17,283 EURSave up to €1,537 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+
2.55ct Round
€17,283 EUR