Marquise|Natural|GIA

0.90ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 3555348775

Certificate GIA 3555348775

Diamond specifications and retailer prices

From £1,437 GBP
$1,928 USD
As of October 29, 2026
Save £1,715 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,628 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded G 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 3555348775. Listed at 20 retailers as of October 29, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555348775
Dimensions9.16 × 5.03 × 3.16 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
9.16 mm5.03 mm0.90 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555348775
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.9%

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: Oct 29
Current: £3,487 GBP|Low: £1,431 GBP|High: £3,542 GBP|Avg: £2,098 GBP|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 13£1,437 GBP
Retailer 2£1,479 GBP
Retailer 11£1,511 GBP
Retailer 14£1,639 GBP
Retailer 3£1,651 GBP
Retailer 5£1,668 GBP
Retailer 8£1,741 GBP
Retailer 10£1,782 GBP
Retailer 6£1,924 GBP
Retailer 9£2,044 GBP
Retailer 12£2,416 GBP
Retailer 4£2,885 GBP
Retailer 7£3,151 GBP
NZ Jewellers£3,487 GBP

25 data points across 14 retailers

20 retailers£1,437 GBP to £3,151 GBP

A
Cheapest Retailer
-
£1,437 GBP
$1,928 USD
A
Retailer 2
-
£1,479 GBP
$1,985 USD
View
A
Retailer 3
-
£1,511 GBP
$2,028 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,639 GBP
$2,199 USD
View
B+
Retailer 5
-
£1,651 GBP
$2,215 USD
View
Retailer 6
-
£1,668 GBP
$2,238 USD
View
Price last confirmed 15 days ago
Retailer 7
-
£1,668 GBP
$2,238 USD
View
Price last confirmed 17 days ago
Retailer 8
-
£1,736 GBP
$2,329 USD
View
Price last confirmed 42 days ago
B+
Retailer 9
-
£1,741 GBP
$2,337 USD
View
Retailer 10
-
£1,744 GBP
$2,341 USD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
£1,782 GBP
View
Retailer 12
-
£1,924 GBP
$2,582 USD
View
Price last confirmed 14 days ago
Retailer 13
-
£2,002 GBP
$2,687 USD
View
Price last confirmed 42 days ago
B+
Retailer 14
-
£2,044 GBP
€2,612 EUR
View
Retailer 15
-
£2,087 GBP
A$4,309 AUD
View
Price last confirmed 26 days ago
B
Retailer 16
-
£2,416 GBP
ZAR 52,387 ZAR
View
B
Retailer 17
-
£2,885 GBP
View
B
Retailer 18
-
£3,151 GBP
View
Retailer 19
-
£3,487 GBP
$4,679 USD
View
Price last confirmed 15 days ago
Most Expensive
NZ Jewellers
e9318d30-70d3-40bf-8375-ff2e1d6c9a9a · Sep 20
£3,628 GBP
$4,868 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from £1,437 GBPSave up to £1,715 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
£1,437 GBP