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Marquise|Natural|GIA

0.90ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 2243007404

Certificate GIA 2243007404

Diamond specifications and retailer prices

From £1,021 GBP
HK$10,700 HKD
As of November 1, 2026
Save £1,316 GBP (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,418 GBP at NZ Jewellers · As of September 30, 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 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 2243007404. Listed at 15 retailers as of November 1, 2026, with a 129% 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2243007404
Dimensions9.82 × 5.04 × 3.15 mm
L/W Ratio1.95
Girdle conditionFaceted
Top View
9.82 mm5.04 mm0.90 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2243007404
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.5%

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: £1,328 GBP|Low: £1,019 GBP|High: £2,464 GBP|Avg: £1,585 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 9£1,021 GBP
Retailer 12£1,230 GBP
Retailer 8£1,242 GBP
Retailer 2£1,256 GBP
Retailer 11£1,326 GBP
Retailer 1£1,328 GBP
Retailer 10£1,429 GBP
Retailer 4£1,434 GBP
Retailer 5£1,814 GBP
Retailer 7£1,822 GBP
Retailer 13£1,984 GBP
Retailer 3£2,004 GBP
Retailer 6£2,337 GBP

34 data points across 13 retailers

15 retailers£1,021 GBP to £2,337 GBP

A
Cheapest Retailer
-
£1,021 GBP
HK$10,700 HKD
B
Retailer 2
-
£1,230 GBP
$1,651 USD
View
Final sale: no returns
B+
Retailer 3
-
£1,242 GBP
$1,667 USD
View
B+
Retailer 4
-
£1,256 GBP
$1,685 USD
View
B+
Retailer 5
-
£1,326 GBP
$1,780 USD
View
B+
Retailer 6
-
£1,328 GBP
View
B+
Retailer 7
-
£1,429 GBP
$1,918 USD
View
B+
Retailer 8
-
£1,434 GBP
SGD 2,601 SGD
View
B
Retailer 9
-
£1,554 GBP
A$3,208 AUD
View
Retailer 10
-
£1,814 GBP
A$3,744 AUD
View
Price last confirmed 28 days ago
B
Retailer 11
-
£1,822 GBP
€2,328 EUR
View
B
Retailer 12
-
£1,984 GBP
ZAR 43,003 ZAR
View
Retailer 13
-
£2,004 GBP
$2,690 USD
View
Price last confirmed 7 days ago
B
Retailer 14
-
£2,337 GBP
View
Most Expensive
NZ Jewellers
d8c42e21-71c1-40dc-81fd-18a329aecdb5 · Sep 30
£3,418 GBP
$4,587 USD
View
Price last confirmed 33 days ago
14 more retailers have this diamond
Prices start from £1,021 GBPSave up to £1,316 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
£1,021 GBP