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Marquise|Natural|GIA

2.50ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 6551868509

Certificate GIA 6551868509

Diamond specifications and retailer prices

From $21,710 USD
As of November 1, 2026
Save $16,771 USD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $38,481 USD at MOH London · As of November 4, 2026
View at MOH London

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551868509. Listed at 16 retailers as of November 1, 2026, with prices from $21,710 to $38,481, a $16,771 spread on the same certified stone. MOH London lists it at $38,481. 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
H
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.76°
Pavilion angle39.97°
OriginNatural
Grading LabGIA
CertificateGIA 6551868509
Dimensions12.92 × 6.97 × 4.51 mm
L/W Ratio1.85
Culet sizeNone
Top View
12.92 mm6.97 mm2.50 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551868509
Side View
Table 62.0%Crown 40.76°Girdle: MED-VTKPavilion 39.97°Culet: NoneDepth 64.6%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $38,481 USD|Low: $21,710 USD|High: $39,049 USD|Avg: $27,654 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 9$21,710 USD
Retailer 14$22,493 USD
Retailer 10$24,706 USD
Retailer 8$24,867 USD
Retailer 11$24,911 USD
Retailer 4$26,310 USD
Retailer 5$26,310 USD
Retailer 13$26,764 USD
Retailer 6$27,190 USD
Retailer 3$27,794 USD
Retailer 2$28,271 USD
Retailer 7$28,782 USD
Retailer 12$34,999 USD
MOH London$38,481 USD

33 data points across 14 retailers

16 retailers$21,710 USD to $38,481 USD

A
Cheapest Retailer
-
$21,710 USD
B+
Retailer 2
-
$22,493 USD
View
Retailer 3
-
$24,706 USD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$24,867 USD
View
B+
Retailer 5
-
$24,911 USD
View
B+
Retailer 6
-
$25,266 USD
View
Retailer 7
-
$25,941 USD
View
Price last confirmed 36 days ago
B+
Retailer 8
-
$26,310 USD
View
B+
Retailer 9
-
$26,310 USD
View
Retailer 10
-
$26,764 USD
View
Price last confirmed 29 days ago
B
Retailer 11
-
$27,190 USD
View
Retailer 12
-
$27,794 USD
View
Price last confirmed 28 days ago
B
Retailer 13
-
$28,271 USD
View
B
Retailer 14
-
$28,782 USD
View
Retailer 15
-
$34,999 USD
View
Price last confirmed 37 days ago
Most Expensive
B
MOH London
BD43AE796 · Nov 4
$38,481 USD
£30,300 GBP
View
15 more retailers have this diamond
Prices start from $21,710 USDSave up to $16,771 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 Marquise
$21,710 USD