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Marquise|Natural|GIA

2.50ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 2557186863

Certificate GIA 2557186863

Diamond specifications and retailer prices

From $28,179 USD
CA$39,137 CAD
As of October 30, 2026
Save $8,567 USD (23%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $36,746 USD at Cape Diamonds · As of November 1, 2026
View at Cape Diamonds

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557186863. Listed at 2 retailers as of October 30, 2026, with prices from $28,179 to $36,746, a $8,567 spread on the same certified stone. Cape Diamonds lists it at $36,746. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.50
Carat
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle39.53°
Pavilion angle39.86°
OriginNatural
Grading LabGIA
CertificateGIA 2557186863
Dimensions12.87 × 6.94 × 4.50 mm
L/W Ratio1.85
Culet sizeNone
Top View
12.87 mm6.94 mm2.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2557186863
Side View
Table 56.0%Crown 39.53°Girdle: MED-VTKPavilion 39.86°Culet: NoneDepth 64.8%

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: $36,746 USD|Low: $17,379 USD|High: $37,848 USD|Avg: $27,247 USD|+2.1%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 3$17,379 USD
Retailer 10$21,281 USD
Retailer 9$23,235 USD
Retailer 7$24,204 USD
Retailer 6$24,286 USD
Retailer 5$26,922 USD
Retailer 11$27,333 USD
Retailer 2$28,179 USD
Retailer 4$33,886 USD
Cape Diamonds$36,746 USD
Retailer 8$37,848 USD

8 data points across 11 retailers

2 retailers$28,179 USD to $36,746 USD

B+
Cheapest Retailer
-
$28,179 USD
CA$39,137 CAD
Most Expensive
B
Cape Diamonds
cert_2557186863 · Nov 1
$36,746 USD
ZAR 593,627 ZAR
View
1 more retailer has this diamond
Prices start from $28,179 USDSave up to $8,567 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
$28,179 USD