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Marquise|Natural|HRD

1.51ct H SI2 Marquise Natural Diamond

EX • H/SI2 • HRD 260000198940

Certificate HRD 260000198940

Diamond specifications and retailer prices

From £2,771 GBP
₹353,541 INR
As of November 1, 2026
Save £3,050 GBP (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £6,367 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000198940. Listed at 9 retailers as of November 1, 2026, with a 110% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000198940
Dimensions11.47 × 6.03 × 3.76 mm
L/W Ratio1.90
Culet sizeNone
Top View
11.47 mm6.03 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000198940
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.3%

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: £3,898 GBP|Low: £2,771 GBP|High: £5,891 GBP|Avg: £3,995 GBP|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2£2,771 GBP
Retailer 5£3,188 GBP
Retailer 4£3,655 GBP
Retailer 6£3,767 GBP
Retailer 1£3,898 GBP
Retailer 8£4,066 GBP
Retailer 7£4,624 GBP
Retailer 3£5,821 GBP

27 data points across 8 retailers

9 retailers£2,771 GBP to £5,821 GBP

A
Cheapest Retailer
-
£2,771 GBP
₹353,541 INR
A
Retailer 2
-
£3,188 GBP
$4,271 USD
View
Retailer 3
-
£3,655 GBP
$4,897 USD
View
Price last confirmed 25 days ago
Retailer 4
-
£3,655 GBP
$4,897 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
£3,767 GBP
$5,048 USD
View
A
Retailer 6
-
£3,898 GBP
€4,974 EUR
View
Retailer 7
-
£4,217 GBP
$5,650 USD
View
Price last confirmed 23 days ago
B+
Retailer 8
-
£5,821 GBP
View
Most Expensive
NZ Jewellers
fb18d4ef-0d2d-42ce-9e59-ed21548f2737 · Sep 30
£6,367 GBP
$8,531 USD
View
Price last confirmed 32 days ago
8 more retailers have this diamond
Prices start from £2,771 GBPSave up to £3,050 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
1.51ct Marquise
£2,771 GBP