Round|Natural|GIA

2.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2146621603

Certificate GIA 2146621603

Diamond specifications and retailer prices

From $38,843 USD
As of October 29, 2026
Save $14,243 USD (27%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $70,431 USD 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2146621603. Listed at 12 retailers as of October 29, 2026, with a 37% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2146621603
Dimensions8.65 × 8.59 × 5.40 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.65 mm8.59 mm2.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2146621603
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.6%

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: $41,953 USD|Low: $38,510 USD|High: $53,086 USD|Avg: $43,783 USD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3$38,510 USD
Retailer 4$38,843 USD
Retailer 1$41,953 USD
Retailer 2$53,086 USD

46 data points across 4 retailers

12 retailers$38,843 USD to $53,086 USD

Retailer 1
-
$38,510 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$38,843 USD
View
B+
Retailer 3
-
$41,117 USD
View
B+
Retailer 4
-
$41,238 USD
View
B+
Retailer 5
-
$41,953 USD
₹3,995,503 INR
View
B
Retailer 6
-
$42,155 USD
CA$58,548 CAD
View
B
Retailer 7
-
$46,820 USD
View
B
Retailer 8
-
$46,820 USD
View
B
Retailer 9
-
$48,380 USD
View
B
Retailer 10
-
$52,729 USD
View
B
Retailer 11
-
$53,086 USD
€50,558 EUR
View
Most Expensive
Diamond Quarter
2.5SI1E2103A4A3N · Oct 29
$70,431 USD
£55,458 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $38,843 USDSave up to $14,243 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.

B+
2.50ct Round
$38,843 USD