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Marquise|Natural|GIA

0.91ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 2558306145

Certificate GIA 2558306145

Diamond specifications and retailer prices

From £1,514 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: £1,514 GBP at 77 Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at 77 Diamonds

About this 0.91ct natural marquise diamond

This 0.91ct natural marquise sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558306145. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.91
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.61°
Pavilion angle38°
OriginNatural
Grading LabGIA
CertificateGIA 2558306145
Dimensions10.30 × 5.01 × 2.92 mm
L/W Ratio2.06
Culet sizeNone
Top View
10.30 mm5.01 mm0.91 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2558306145
Side View
Table 58.0%Crown 36.61°Girdle: MED-VTKPavilion 38°Culet: NoneDepth 58.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: £1,514 GBP|Low: £815 GBP|High: £2,084 GBP|Avg: £1,545 GBP|-0.8%
77 Diamonds
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November 2, 2026
Retailer 16£815 GBP
Retailer 6£1,204 GBP
Retailer 15£1,223 GBP
Retailer 14£1,239 GBP
Retailer 4£1,332 GBP
Retailer 13£1,504 GBP
77 Diamonds£1,514 GBP
Retailer 8£1,540 GBP
Retailer 12£1,547 GBP
Retailer 3£1,610 GBP
Retailer 10£1,652 GBP
Retailer 2£1,712 GBP
Retailer 5£1,794 GBP
Retailer 11£1,942 GBP
Retailer 7£2,002 GBP
Retailer 9£2,084 GBP

3 data points across 16 retailers

1 retailer

B
77 Diamonds
MQMMCTVQC5E · Nov 2
£1,514 GBP
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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.

B
0.91ct Marquise
£1,514 GBP