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Marquise|Natural|GIA

1.00ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 2556942302

Certificate GIA 2556942302

Diamond specifications and retailer prices

From £1,806 GBP
HK$18,900 HKD
As of October 31, 2026
Save £2,375 GBP (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,181 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic 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 2556942302. Listed at 18 retailers as of October 30, 2026, with prices from £1,806 to £4,181, a £2,375 spread on the same certified stone. NZ Jewellers lists it at £4,181. 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

1.00
Carat
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556942302
Dimensions9.82 × 5.16 × 3.29 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Natural
Top View
9.82 mm5.16 mm1.00 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556942302
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.8%

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 31
Current: £4,181 GBP|Low: £1,806 GBP|High: £4,181 GBP|Avg: £2,732 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
Retailer 16
Retailer 17
November 1, 2026
Retailer 13£1,806 GBP
Retailer 12£1,891 GBP
Retailer 5£2,106 GBP
Retailer 6£2,215 GBP
Retailer 2£2,373 GBP
Retailer 4£2,400 GBP
Retailer 16£2,400 GBP
Retailer 17£2,492 GBP
Retailer 7£2,507 GBP
Retailer 11£2,508 GBP
Retailer 8£2,516 GBP
Retailer 9£2,575 GBP
Retailer 3£2,769 GBP
Retailer 14£2,809 GBP
Retailer 15£3,976 GBP
Retailer 10£4,014 GBP
NZ Jewellers£4,181 GBP

23 data points across 17 retailers

18 retailers£1,806 GBP to £4,181 GBP

A
Cheapest Retailer
-
£1,806 GBP
HK$18,900 HKD
A
Retailer 2
-
£1,891 GBP
₹241,349 INR
View
A
Retailer 3
-
£2,106 GBP
SGD 3,814 SGD
View
A
Retailer 4
-
£2,215 GBP
$2,968 USD
View
Final sale: no returns
A
Retailer 5
-
£2,229 GBP
$2,987 USD
View
A
Retailer 6
-
£2,373 GBP
View
A
Retailer 7
-
£2,400 GBP
$3,216 USD
View
A
Retailer 8
-
£2,400 GBP
$3,216 USD
View
B+
Retailer 9
-
£2,492 GBP
$3,339 USD
View
B+
Retailer 10
-
£2,507 GBP
$3,359 USD
View
A
Retailer 11
-
£2,508 GBP
View
B+
Retailer 12
-
£2,516 GBP
SGD 4,555 SGD
View
B+
Retailer 13
-
£2,575 GBP
$3,450 USD
View
B+
Retailer 14
-
£2,769 GBP
$3,710 USD
View
B+
Retailer 15
-
£2,809 GBP
€3,585 EUR
View
B
Retailer 16
-
£3,976 GBP
View
B
Retailer 17
-
£4,014 GBP
View
Most Expensive
B
NZ Jewellers
5d2f3720-65a6-467a-852d-410bb45f6b80 · Oct 30
£4,181 GBP
$5,602 USD
View
17 more retailers have this diamond
Prices start from £1,806 GBPSave up to £2,375 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
1.00ct Marquise
£1,806 GBP