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Marquise|Natural|HRD

2.51ct I SI2 Marquise Natural Diamond

VG • I/SI2 • HRD 260000097634

Certificate HRD 260000097634

Diamond specifications and retailer prices

From £8,749 GBP
$11,740 USD
As of October 31, 2026
Save £5,689 GBP (39%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £14,437 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded I 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 HRD 260000097634. Listed at 5 retailers as of October 30, 2026, with prices from £8,749 to £14,437, a £5,689 spread on the same certified stone. NZ Jewellers lists it at £14,437. 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

2.51
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle33.64°
Pavilion angle39.55°
OriginNatural
Grading LabHRD
CertificateHRD 260000097634
Dimensions14.59 × 7.23 × 4.18 mm
L/W Ratio2.02
Girdle conditionMedium
Top View
14.59 mm7.23 mm2.51 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateHRD 260000097634
Side View
Table 63.0%Crown 33.64°GirdlePavilion 39.55°Culet: NoneDepth 57.8%

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: Oct 31
Current: £14,437 GBP|Low: £8,749 GBP|High: £14,510 GBP|Avg: £11,076 GBP|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4£8,749 GBP
Retailer 6£8,892 GBP
Retailer 5£10,199 GBP
Retailer 3£10,307 GBP
Retailer 2£13,461 GBP
NZ Jewellers£14,437 GBP

19 data points across 6 retailers

5 retailers£8,749 GBP to £14,437 GBP

A
Cheapest Retailer
-
£8,749 GBP
$11,740 USD
B+
Retailer 2
-
£10,199 GBP
$13,686 USD
View
A
Retailer 3
-
£10,307 GBP
$13,831 USD
View
B+
Retailer 4
-
£13,461 GBP
View
Most Expensive
B+
NZ Jewellers
87de9fc0-b8fe-4df8-8005-b85b93a98aef · Oct 30
£14,437 GBP
$19,374 USD
View
4 more retailers have this diamond
Prices start from £8,749 GBPSave up to £5,689 GBP

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
2.51ct Marquise
£8,749 GBP