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Marquise|Natural|GIA

0.90ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 2556659220

Certificate GIA 2556659220

Diamond specifications and retailer prices

From £1,309 GBP
HK$13,700 HKD
As of October 30, 2026
Save £1,776 GBP (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,662 GBP at NZ Jewellers · As of October 17, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556659220. Listed at 17 retailers as of October 29, 2026, with a 136% 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556659220
Dimensions9.66 × 5.12 × 3.02 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
9.66 mm5.12 mm0.90 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556659220
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.9%

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 30
Current: £3,662 GBP|Low: £1,309 GBP|High: £3,662 GBP|Avg: £2,057 GBP
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
Retailer 15
October 30, 2026
Retailer 7£1,309 GBP
Retailer 2£1,376 GBP
Retailer 13£1,532 GBP
Retailer 4£1,617 GBP
Retailer 3£1,752 GBP
Retailer 14£1,752 GBP
Retailer 6£1,830 GBP
Retailer 12£1,833 GBP
Retailer 5£1,856 GBP
Retailer 8£1,923 GBP
Retailer 15£2,021 GBP
Retailer 10£2,184 GBP
Retailer 11£3,076 GBP
Retailer 9£3,085 GBP
NZ Jewellers£3,662 GBP

34 data points across 15 retailers

17 retailers£1,309 GBP to £3,085 GBP

A
Cheapest Retailer
-
£1,309 GBP
HK$13,700 HKD
A
Retailer 2
-
£1,376 GBP
₹175,566 INR
View
A
Retailer 3
-
£1,532 GBP
SGD 2,774 SGD
View
A
Retailer 4
-
£1,617 GBP
$2,166 USD
View
Final sale: no returns
A
Retailer 5
-
£1,649 GBP
$2,210 USD
View
Retailer 6
-
£1,752 GBP
$2,347 USD
View
Price last confirmed 14 days ago
Retailer 7
-
£1,752 GBP
$2,347 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
£1,830 GBP
SGD 3,314 SGD
View
Retailer 9
-
£1,833 GBP
$2,456 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
£1,856 GBP
$2,487 USD
View
B+
Retailer 11
-
£1,923 GBP
View
B+
Retailer 12
-
£1,949 GBP
A$4,018 AUD
View
Retailer 13
-
£2,021 GBP
$2,708 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
£2,184 GBP
€2,787 EUR
View
B
Retailer 15
-
£3,076 GBP
View
B
Retailer 16
-
£3,085 GBP
View
Most Expensive
NZ Jewellers
0e4d4b7f-c108-4ee7-87f5-985cef0d1073 · Oct 17
£3,662 GBP
$4,907 USD
View
Price last confirmed 12 days ago
16 more retailers have this diamond
Prices start from £1,309 GBPSave up to £1,776 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