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Marquise|Natural|GIA

0.90ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6542279516

Certificate GIA 6542279516

Diamond specifications and retailer prices

From £1,309 GBP
$1,754 USD
As of November 1, 2026
Save £925 GBP (41%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,234 GBP at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

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 6542279516. Listed at 5 retailers as of October 30, 2026, with prices from £1,309 to £2,234, a £925 spread on the same certified stone. 77 Diamonds lists it at £2,234. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542279516
Dimensions9.49 × 5.13 × 3.06 mm
L/W Ratio1.85
Top View
9.49 mm5.13 mm0.90 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542279516
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 59.7%

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 1
Current: £2,234 GBP|Low: £1,309 GBP|High: £2,234 GBP|Avg: £1,690 GBP|+2.4%
77 Diamonds
Retailer 2
Retailer 3
October 30, 2026
Retailer 2£1,309 GBP
Retailer 3£1,481 GBP
77 Diamonds£2,234 GBP

33 data points across 3 retailers

5 retailers£1,309 GBP to £2,234 GBP

A
Cheapest Retailer
-
£1,309 GBP
$1,754 USD
B+
Retailer 2
-
£1,461 GBP
$1,957 USD
View
B+
Retailer 3
-
£1,481 GBP
$1,985 USD
View
B+
Retailer 4
-
£1,578 GBP
$2,114 USD
View
Most Expensive
B
77 Diamonds
MQZQTUMDREW · Oct 30
£2,234 GBP
View
4 more retailers have this diamond
Prices start from £1,309 GBPSave up to £925 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
0.90ct Marquise
£1,309 GBP