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Marquise|Natural|GIA

1.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2546552151

Certificate GIA 2546552151

Diamond specifications and retailer prices

From £5,920 GBP
As of November 6, 2026
Save £5,011 GBP (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £10,931 GBP at NZ Jewellers · As of November 5, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546552151. Listed at 18 retailers as of November 5, 2026, with prices from £5,920 to £10,931, a £5,011 spread on the same certified stone. NZ Jewellers lists it at £10,931. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.29°
Pavilion angle41.03°
OriginNatural
Grading LabGIA
CertificateGIA 2546552151
Dimensions11.17 × 5.94 × 3.89 mm
L/W Ratio1.88
Top View
11.17 mm5.94 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546552151
Side View
Table 60.0%Crown 38.29°Girdle: ThickPavilion 41.03°Culet: NoneDepth 65.4%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £10,931 GBP|Low: £6,069 GBP|High: £10,931 GBP|Avg: £7,754 GBP
NZ Jewellers
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 12£6,197 GBP
Retailer 14£6,415 GBP
Retailer 13£6,558 GBP
Retailer 7£6,980 GBP
Retailer 15£7,105 GBP
Retailer 10£7,172 GBP
Retailer 8£7,283 GBP
Retailer 2£7,349 GBP
Retailer 3£7,626 GBP
Retailer 4£7,815 GBP
Retailer 16£7,815 GBP
Retailer 9£8,076 GBP
Retailer 11£8,198 GBP
Retailer 6£8,307 GBP
Retailer 5£10,312 GBP
NZ Jewellers£10,931 GBP

33 data points across 16 retailers

18 retailers£5,920 GBP to £10,931 GBP

A
Cheapest Retailer
-
£5,920 GBP
A
Retailer 2
-
£6,197 GBP
View
B+
Retailer 3
-
£6,259 GBP
View
B+
Retailer 4
-
£6,415 GBP
View
B+
Retailer 5
-
£6,558 GBP
View
Final sale: no returns
B+
Retailer 6
-
£6,980 GBP
View
B+
Retailer 7
-
£7,105 GBP
View
B+
Retailer 8
-
£7,172 GBP
View
B+
Retailer 9
-
£7,283 GBP
View
B+
Retailer 10
-
£7,349 GBP
View
B+
Retailer 11
-
£7,626 GBP
View
B+
Retailer 12
-
£7,815 GBP
View
B+
Retailer 13
-
£7,815 GBP
View
B
Retailer 14
-
£8,076 GBP
View
B
Retailer 15
-
£8,198 GBP
View
B
Retailer 16
-
£8,307 GBP
View
B
Retailer 17
-
£10,312 GBP
View
Most Expensive
B
NZ Jewellers
32220f11-e81f-449d-a18c-95ee5e69bbf1 · Nov 5
£10,931 GBP
$14,631 USD
View
17 more retailers have this diamond
Prices start from £5,920 GBPSave up to £5,011 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
£5,920 GBP