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Marquise|Natural|GIA

1.51ct F SI2 Marquise Natural Diamond

ID • F/SI2 • GIA 5556577202

Certificate GIA 5556577202

Diamond specifications and retailer prices

From £5,451 GBP
As of November 2, 2026
Save £4,226 GBP (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £9,677 GBP at NZ Jewellers · As of November 3, 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 5556577202. Listed at 6 retailers as of November 2, 2026, with prices from £5,451 to £9,677, a £4,226 spread on the same certified stone. NZ Jewellers lists it at £9,677. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle40.34°
Pavilion angle38.91°
OriginNatural
Grading LabGIA
CertificateGIA 5556577202
Dimensions10.69 × 6.01 × 3.76 mm
L/W Ratio1.78
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Knot, Feather, Crystal, Cavity
Top View
10.69 mm6.01 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5556577202
Side View
Table 63.0%Crown 40.34°Girdle: THK-VTKPavilion 38.91°Culet: NoneDepth 62.6%

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 2
Current: £9,677 GBP|Low: £5,185 GBP|High: £10,067 GBP|Avg: £6,844 GBP|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2£5,451 GBP
Retailer 6£5,469 GBP
Retailer 5£5,786 GBP
Retailer 4£5,875 GBP
Retailer 3£8,063 GBP
NZ Jewellers£9,677 GBP

28 data points across 6 retailers

6 retailers£5,451 GBP to £9,677 GBP

A
Cheapest Retailer
-
£5,451 GBP
A
Retailer 2
-
£5,469 GBP
View
A
Retailer 3
-
£5,786 GBP
View
A
Retailer 4
-
£5,875 GBP
View
B+
Retailer 5
-
£8,063 GBP
View
Most Expensive
B
NZ Jewellers
e3c68807-8ece-4c9c-87ec-c0e815e56356 · Nov 3
£9,677 GBP
$12,952 USD
View
5 more retailers have this diamond
Prices start from £5,451 GBPSave up to £4,226 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
£5,451 GBP