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Marquise|Natural|GIA

1.51ct J SI2 Marquise Natural Diamond

ID • J/SI2 • GIA 5546879204

Certificate GIA 5546879204

Diamond specifications and retailer prices

From £3,608 GBP
As of November 3, 2026
Save £3,026 GBP (46%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £6,634 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 J 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 GIA 5546879204. Listed at 6 retailers as of November 3, 2026, with prices from £3,608 to £6,634, a £3,026 spread on the same certified stone. NZ Jewellers lists it at £6,634. 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
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.99°
Pavilion angle41.37°
OriginNatural
Grading LabGIA
CertificateGIA 5546879204
Dimensions10.80 × 5.91 × 4.00 mm
L/W Ratio1.83
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle
Top View
10.80 mm5.91 mm1.51 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5546879204
Side View
Table 58.0%Crown 39.99°Girdle: ThickPavilion 41.37°Culet: NoneDepth 67.7%

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 3
Current: £6,634 GBP|Low: £3,553 GBP|High: £7,046 GBP|Avg: £4,917 GBP|-5.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 2£3,608 GBP
Retailer 3£3,921 GBP
Retailer 5£3,966 GBP
Retailer 6£3,966 GBP
Retailer 4£6,316 GBP
NZ Jewellers£6,634 GBP

40 data points across 6 retailers

6 retailers£3,608 GBP to £6,634 GBP

A
Cheapest Retailer
-
£3,608 GBP
B+
Retailer 2
-
£3,921 GBP
View
B+
Retailer 3
-
£3,966 GBP
View
B+
Retailer 4
-
£3,966 GBP
View
B
Retailer 5
-
£6,316 GBP
View
Most Expensive
B
NZ Jewellers
8db15d66-5632-4570-981f-c8cd081f8308 · Nov 3
£6,634 GBP
$8,879 USD
View
5 more retailers have this diamond
Prices start from £3,608 GBPSave up to £3,026 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
£3,608 GBP