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Marquise|Natural|GIA

0.90ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 2524215421

Certificate GIA 2524215421

Diamond specifications and retailer prices

From £1,401 GBP
$1,880 USD
As of November 2, 2026
Save £1,645 GBP (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,046 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.9ct natural marquise diamond

This 0.9ct 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 2524215421. Listed at 13 retailers as of November 2, 2026, with prices from £1,401 to £3,046, a £1,645 spread on the same certified stone. MOH London lists it at £3,046. 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

0.90
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.54°
OriginNatural
Grading LabGIA
CertificateGIA 2524215421
Dimensions10.07 × 5.15 × 3.00 mm
L/W Ratio1.96
Top View
10.07 mm5.15 mm0.90 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2524215421
Side View
Table 59.0%Crown 35.54°Girdle: MED-THKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £3,046 GBP|Low: £1,382 GBP|High: £3,082 GBP|Avg: £1,958 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6£1,401 GBP
Retailer 7£1,483 GBP
Retailer 5£1,727 GBP
Retailer 3£1,892 GBP
Retailer 2£2,033 GBP
Retailer 4£2,141 GBP
MOH London£3,046 GBP

42 data points across 7 retailers

13 retailers£1,401 GBP to £3,046 GBP

B+
Cheapest Retailer
-
£1,401 GBP
$1,880 USD
B+
Retailer 2
-
£1,416 GBP
$1,900 USD
View
B+
Retailer 3
-
£1,483 GBP
$1,990 USD
View
B
Retailer 4
-
£1,718 GBP
CA$3,202 CAD
View
B
Retailer 5
-
£1,727 GBP
$2,317 USD
View
B
Retailer 6
-
£1,826 GBP
$2,450 USD
View
B
Retailer 7
-
£1,826 GBP
$2,450 USD
View
B
Retailer 8
-
£1,885 GBP
$2,530 USD
View
B
Retailer 9
-
£1,892 GBP
View
B
Retailer 10
-
£1,988 GBP
$2,668 USD
View
B
Retailer 11
-
£2,033 GBP
€2,598 EUR
View
Retailer 12
-
£2,141 GBP
A$4,419 AUD
View
Price last confirmed 26 days ago
Most Expensive
B
MOH London
5A7514D13 · Nov 2
£3,046 GBP
View
12 more retailers have this diamond
Prices start from £1,401 GBPSave up to £1,645 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.

B+
0.90ct Marquise
£1,401 GBP