Round|Natural|GIA

2.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6375087784

Certificate GIA 6375087784

Diamond specifications and retailer prices

From $24,535 USD
As of October 27, 2026
Save $18,406 USD (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $42,941 USD 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 6375087784. Listed at 14 retailers as of October 27, 2026, with prices from $24,535 to $42,941, a $18,406 spread on the same certified stone. Diamond Quarter lists it at $42,941. 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
FluorescenceStrong
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6375087784
Dimensions8.71 × 8.75 × 5.36 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
8.71 mm8.75 mm2.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6375087784
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $29,465 USD|Low: $24,535 USD|High: $42,595 USD|Avg: $30,461 USD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 8$24,535 USD
Retailer 9$25,309 USD
Retailer 7$26,220 USD
Retailer 3$27,030 USD
Retailer 6$27,124 USD
Retailer 1$29,465 USD
Retailer 4$32,402 USD
Retailer 5$37,065 USD
Retailer 2$42,313 USD

41 data points across 9 retailers

14 retailers$24,535 USD to $42,941 USD

A
Cheapest Retailer
-
$24,535 USD
A
Retailer 2
-
$25,309 USD
View
A
Retailer 3
-
$26,220 USD
View
A
Retailer 4
-
$27,030 USD
£21,284 GBP
View
A
Retailer 5
-
$27,124 USD
A$41,730 AUD
View
Price last confirmed 27 days ago
B+
Retailer 6
-
$28,071 USD
View
Price last confirmed 31 days ago
B+
Retailer 7
-
$28,296 USD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
$29,194 USD
View
Price last confirmed 27 days ago
B+
Retailer 9
-
$29,465 USD
£23,201 GBP
View
B+
Retailer 10
-
$30,317 USD
View
Price last confirmed 20 days ago
B+
Retailer 11
-
$32,402 USD
€30,859 EUR
View
B+
Retailer 12
-
$37,065 USD
ZAR 598,796 ZAR
View
B
Retailer 13
-
$42,313 USD
£33,317 GBP
View
Most Expensive
B
Diamond Quarter
2.5SI1D638413FDN · Oct 28
$42,941 USD
£33,812 GBP
View
13 more retailers have this diamond
Prices start from $24,535 USDSave up to $18,406 USD

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.

A
2.50ct Round
$24,535 USD