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Round|Natural|GIA

2.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1518212262

Certificate GIA 1518212262

Diamond specifications and retailer prices

From €27,051 EUR
$30,221 USD
As of October 30, 2026
Save €22,613 EUR (46%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €49,664 EUR at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1518212262. Listed at 20 retailers as of October 29, 2026, with prices from €27,051 to €49,664, a €22,613 spread on the same certified stone. Diamond Quarter lists it at €49,664. 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

2.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1518212262
Dimensions8.76 × 8.82 × 5.31 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Cloud, Natural
Top View
8.76 mm8.82 mm2.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518212262
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 60.5%

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: €35,834 EUR|Low: €27,051 EUR|High: €47,750 EUR|Avg: €33,399 EUR|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 11€27,051 EUR
Retailer 8€27,504 EUR
Retailer 10€29,337 EUR
Retailer 9€29,949 EUR
Retailer 13€30,194 EUR
Retailer 4€30,210 EUR
Retailer 16€30,503 EUR
Retailer 3€31,469 EUR
Retailer 17€31,721 EUR
Retailer 2€32,303 EUR
Retailer 6€32,728 EUR
Retailer 12€32,941 EUR
Retailer 7€33,987 EUR
Retailer 18€35,217 EUR
Retailer 1€35,834 EUR
Retailer 5€36,005 EUR
Retailer 19€37,827 EUR
Retailer 15€41,552 EUR
Retailer 14€47,434 EUR

29 data points across 19 retailers

20 retailers€27,051 EUR to €49,664 EUR

B+
Cheapest Retailer
-
€27,051 EUR
$30,221 USD
B+
Retailer 2
-
€27,504 EUR
$30,728 USD
View
B+
Retailer 3
-
€29,337 EUR
$32,775 USD
View
Retailer 4
-
€29,949 EUR
A$51,476 AUD
View
Price last confirmed 28 days ago
B+
Retailer 5
-
€30,194 EUR
£26,561 GBP
View
B+
Retailer 6
-
€30,210 EUR
$33,751 USD
View
B+
Retailer 7
-
€30,503 EUR
CA$47,331 CAD
View
B+
Retailer 8
-
€31,469 EUR
$35,157 USD
View
B+
Retailer 9
-
€31,721 EUR
$35,439 USD
View
B
Retailer 10
-
€32,303 EUR
$36,089 USD
View
B
Retailer 11
-
€32,728 EUR
$36,564 USD
View
B+
Retailer 12
-
€32,941 EUR
£28,977 GBP
View
B+
Retailer 13
-
€33,987 EUR
$37,970 USD
View
B+
Retailer 14
-
€35,217 EUR
$39,345 USD
View
B+
Retailer 15
-
€35,834 EUR
View
B+
Retailer 16
-
€36,005 EUR
$40,225 USD
View
B
Retailer 17
-
€37,827 EUR
$42,260 USD
View
B
Retailer 18
-
€41,552 EUR
ZAR 749,958 ZAR
View
B
Retailer 19
-
€47,434 EUR
£41,727 GBP
View
Most Expensive
B
Diamond Quarter
2.5SI1D1562EF73N · Oct 29
€49,664 EUR
£43,689 GBP
View
19 more retailers have this diamond
Prices start from €27,051 EURSave up to €22,613 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+
2.50ct Round
€27,051 EUR