Marquise|Natural|GIA

2.50ct D SI1 Marquise Natural Diamond

EX • D/SI1

Diamond specifications and retailer prices

From $36,776 USD
CA$51,078 CAD
As of November 2, 2026
Save $9,225 USD (20%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $46,001 USD at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of November 2, 2026, with prices from $36,776 to $46,001, a $9,225 spread on the same certified stone. The Diamond Guys lists it at $46,001. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions15.18 × 6.97 × 4.04 mm
L/W Ratio2.18
Top View
15.18 mm6.97 mm2.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 62.0%CrownGirdle: Slightly ThickPavilionCuletDepth 57.9%

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: Nov 2
Current: $40,945 USD|Low: $36,776 USD|High: $46,001 USD|Avg: $42,083 USD
Retailer 1
Retailer 2
The Diamond Guys
September 25, 2026
Retailer 2$36,776 USD
Retailer 1$40,945 USD
The Diamond Guys$46,001 USD

3 data points across 3 retailers

2 retailers$36,776 USD to $46,001 USD

B+
Cheapest Retailer
-
$36,776 USD
CA$51,078 CAD
Most Expensive
B
The Diamond Guys
1960516456 · Nov 2
$46,001 USD
View
1 more retailer has this diamond
Prices start from $36,776 USDSave up to $9,225 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 Marquise
$36,776 USD