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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 $42,297 CAD
$30,221 USD
As of October 29, 2026
Save $35,359 CAD (46%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $77,656 CAD at Diamond Quarter · As of October 28, 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 28, 2026, with prices from $42,297 to $77,656, a $35,359 spread on the same certified stone. Diamond Quarter lists it at $77,656. 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
Color
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 29
Current: $51,650 CAD|Low: $42,297 CAD|High: $74,664 CAD|Avg: $52,230 CAD|-0.8%
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 29, 2026
Retailer 11$42,297 CAD
Retailer 8$43,007 CAD
Retailer 10$45,872 CAD
Retailer 9$46,830 CAD
Retailer 14$46,928 CAD
Retailer 4$47,238 CAD
Retailer 16$47,696 CAD
Retailer 3$49,206 CAD
Retailer 17$49,600 CAD
Retailer 2$50,510 CAD
Retailer 6$51,175 CAD
Retailer 1$51,650 CAD
Retailer 7$53,143 CAD
Retailer 18$55,067 CAD
Retailer 13$55,943 CAD
Retailer 5$56,299 CAD
Retailer 19$59,147 CAD
Retailer 15$64,973 CAD
Retailer 12$74,169 CAD

27 data points across 19 retailers

20 retailers$42,297 CAD to $77,656 CAD

B+
Cheapest Retailer
-
$42,297 CAD
$30,221 USD
B+
Retailer 2
-
$43,007 CAD
$30,728 USD
View
B+
Retailer 3
-
$45,872 CAD
$32,775 USD
View
B+
Retailer 4
-
$46,830 CAD
A$51,476 AUD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
$46,928 CAD
£26,401 GBP
View
B+
Retailer 6
-
$47,238 CAD
$33,751 USD
View
B+
Retailer 7
-
$47,696 CAD
View
B+
Retailer 8
-
$49,206 CAD
$35,157 USD
View
B+
Retailer 9
-
$49,600 CAD
$35,439 USD
View
B
Retailer 10
-
$50,510 CAD
$36,089 USD
View
B
Retailer 11
-
$51,175 CAD
$36,564 USD
View
B+
Retailer 12
-
$51,650 CAD
£29,058 GBP
View
B+
Retailer 13
-
$53,143 CAD
$37,970 USD
View
B+
Retailer 14
-
$55,067 CAD
$39,345 USD
View
B+
Retailer 15
-
$55,943 CAD
€38,067 EUR
View
B+
Retailer 16
-
$56,299 CAD
$40,225 USD
View
B
Retailer 17
-
$59,147 CAD
$42,260 USD
View
B
Retailer 18
-
$64,973 CAD
ZAR 749,958 ZAR
View
B
Retailer 19
-
$74,169 CAD
£41,727 GBP
View
Most Expensive
B
Diamond Quarter
2.5SI1D1562EF73N · Oct 28
$77,656 CAD
£43,689 GBP
View
19 more retailers have this diamond
Prices start from $42,297 CADSave up to $35,359 CAD

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
$42,297 CAD