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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 $38,620 NZD
As of November 1, 2026
Save $29,834 NZD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $68,454 NZD 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 $38,620 to $68,454, a $29,834 spread on the same certified stone. MOH London lists it at $68,454. 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
Colour
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: $68,454 NZD|Low: $38,620 NZD|High: $69,464 NZD|Avg: $49,194 NZD|-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$38,620 NZD
Retailer 14$40,013 NZD
Retailer 10$43,950 NZD
Retailer 8$44,236 NZD
Retailer 11$44,314 NZD
Retailer 4$46,803 NZD
Retailer 5$46,803 NZD
Retailer 13$47,610 NZD
Retailer 6$48,368 NZD
Retailer 3$49,443 NZD
Retailer 2$50,291 NZD
Retailer 7$51,200 NZD
Retailer 12$62,260 NZD
MOH London$68,454 NZD

33 data points across 14 retailers

16 retailers$38,620 NZD to $68,454 NZD

A
Cheapest Retailer
-
$38,620 NZD
B+
Retailer 2
-
$40,013 NZD
View
Retailer 3
-
$43,950 NZD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$44,236 NZD
View
B+
Retailer 5
-
$44,314 NZD
View
B+
Retailer 6
-
$44,946 NZD
View
Retailer 7
-
$46,146 NZD
View
Price last confirmed 36 days ago
B+
Retailer 8
-
$46,803 NZD
View
B+
Retailer 9
-
$46,803 NZD
View
Retailer 10
-
$47,610 NZD
View
Price last confirmed 29 days ago
B
Retailer 11
-
$48,368 NZD
View
Retailer 12
-
$49,443 NZD
View
Price last confirmed 28 days ago
B
Retailer 13
-
$50,291 NZD
View
B
Retailer 14
-
$51,200 NZD
View
Retailer 15
-
$62,260 NZD
View
Price last confirmed 37 days ago
Most Expensive
B
MOH London
BD43AE796 · Nov 4
$68,454 NZD
£30,300 GBP
View
15 more retailers have this diamond
Prices start from $38,620 NZDSave up to $29,834 NZD

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
$38,620 NZD