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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 $39,363 CAD
As of October 30, 2026
Save $11,694 CAD (23%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $51,057 CAD at Cape Diamonds · As of October 27, 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 27, 2026, with prices from $39,363 to $51,057, a $11,694 spread on the same certified stone. Cape Diamonds lists it at $51,057. 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: $51,057 CAD|Low: $24,276 CAD|High: $52,870 CAD|Avg: $38,032 CAD|+1.6%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 27, 2026
Retailer 3$24,276 CAD
Retailer 10$29,727 CAD
Retailer 9$32,457 CAD
Retailer 7$33,810 CAD
Retailer 6$33,925 CAD
Retailer 5$37,607 CAD
Retailer 11$38,182 CAD
Retailer 2$39,363 CAD
Retailer 4$47,335 CAD
Cape Diamonds$51,057 CAD
Retailer 8$52,870 CAD

7 data points across 11 retailers

2 retailers$39,363 CAD to $51,057 CAD

B+
Cheapest Retailer
-
$39,363 CAD
Most Expensive
B
Cape Diamonds
cert_2557186863 · Oct 27
$51,057 CAD
ZAR 590,472 ZAR
View
1 more retailer has this diamond
Prices start from $39,363 CADSave up to $11,694 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 Marquise
$39,363 CAD