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Marquise|Natural|GIA

0.90ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 2557985642

Certificate GIA 2557985642

Diamond specifications and retailer prices

From £1,444 GBP
$1,935 USD
As of October 30, 2026
Save £1,174 GBP (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,618 GBP at Riddles Jewelry · As of October 31, 2026
View at Riddles Jewelry

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded H 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 2557985642. Listed at 9 retailers as of October 30, 2026, with prices from £1,444 to £2,618, a £1,174 spread on the same certified stone. Riddles Jewelry lists it at £2,618. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557985642
Dimensions9.63 × 5.07 × 3.14 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal, Feather, Knot
Top View
9.63 mm5.07 mm0.90 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557985642
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.9%

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: Oct 30
Current: £2,580 GBP|Low: £1,444 GBP|High: £2,618 GBP|Avg: £1,795 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Riddles Jewelry
November 2, 2026
Retailer 7£1,444 GBP
Retailer 8£1,725 GBP
Retailer 3£1,789 GBP
Retailer 6£1,806 GBP
Retailer 5£1,894 GBP
Retailer 2£2,337 GBP
Retailer 4£2,559 GBP
Retailer 1£2,580 GBP
Riddles Jewelry£2,618 GBP

32 data points across 9 retailers

9 retailers£1,444 GBP to £2,618 GBP

B+
Cheapest Retailer
-
£1,444 GBP
$1,935 USD
B+
Retailer 2
-
£1,725 GBP
SGD 3,123 SGD
View
B
Retailer 3
-
£1,789 GBP
$2,397 USD
View
B+
Retailer 4
-
£1,806 GBP
$2,420 USD
View
B
Retailer 5
-
£1,894 GBP
$2,538 USD
View
B
Retailer 6
-
£2,303 GBP
$3,086 USD
View
B
Retailer 7
-
£2,337 GBP
View
B
Retailer 8
-
£2,580 GBP
€3,292 EUR
View
Most Expensive
B
Riddles Jewelry
1997151045 · Oct 31
£2,618 GBP
$3,508 USD
View
8 more retailers have this diamond
Prices start from £1,444 GBPSave up to £1,174 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
£1,444 GBP