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Marquise|Natural|GIA

1.58ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6551124693

Certificate GIA 6551124693

Diamond specifications and retailer prices

From £3,975 GBP
As of November 6, 2026
Save £1,031 GBP (21%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £5,006 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.58ct natural marquise diamond

This 1.58ct 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 6551124693. Listed at 6 retailers as of November 6, 2026, with prices from £3,975 to £5,006, a £1,031 spread on the same certified stone. GemTrove lists it at £5,006. 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

1.58
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551124693
Dimensions11.83 × 6.16 × 3.89 mm
L/W Ratio1.92
Culet sizeNone
Key to symbols
Feather, Indented Natural
Top View
11.83 mm6.16 mm1.58 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551124693
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.2%

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 6
Current: £3,975 GBP|Low: £3,975 GBP|High: £5,046 GBP|Avg: £4,495 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1£3,975 GBP
Retailer 3£4,319 GBP
Retailer 4£4,538 GBP
Retailer 5£4,684 GBP
Retailer 2£4,703 GBP

46 data points across 5 retailers

6 retailers£3,975 GBP to £5,006 GBP

A
Cheapest Retailer
-
£3,975 GBP
B+
Retailer 2
-
£4,319 GBP
View
B+
Retailer 3
-
£4,538 GBP
View
B+
Retailer 4
-
£4,684 GBP
View
Final sale: no returns
B+
Retailer 5
-
£4,703 GBP
View
Most Expensive
B
GemTrove
GT-N-01274069-98 · Nov 6
£5,006 GBP
A$10,308 AUD
View
5 more retailers have this diamond
Prices start from £3,975 GBPSave up to £1,031 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
1.58ct Marquise
£3,975 GBP