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Marquise|Natural|GIA

1.00ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1555471219

Certificate GIA 1555471219

Diamond specifications and retailer prices

From £1,840 GBP
As of November 5, 2026
Save £560 GBP (23%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,399 GBP at GemTrove · As of November 6, 2026
View at GemTrove

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 1555471219. Listed at 7 retailers as of November 5, 2026, with prices from £1,840 to £2,399, a £560 spread on the same certified stone. GemTrove lists it at £2,399. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555471219
Dimensions10.45 × 5.27 × 3.08 mm
L/W Ratio1.98
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
10.45 mm5.27 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555471219
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.4%

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 5
Current: £2,135 GBP|Low: £1,741 GBP|High: £2,377 GBP|Avg: £2,068 GBP|-4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2£1,840 GBP
Retailer 3£2,001 GBP
Retailer 4£2,023 GBP
Retailer 1£2,135 GBP
Retailer 5£2,292 GBP

46 data points across 5 retailers

7 retailers£1,840 GBP to £2,399 GBP

A
Cheapest Retailer
-
£1,840 GBP
A
Retailer 2
-
£2,001 GBP
View
A
Retailer 3
-
£2,023 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,135 GBP
View
A
Retailer 5
-
£2,292 GBP
View
B+
Retailer 6
-
£2,351 GBP
View
Most Expensive
B+
GemTrove
GT-N-01273345-98 · Nov 6
£2,399 GBP
A$4,968 AUD
View
6 more retailers have this diamond
Prices start from £1,840 GBPSave up to £560 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
£1,840 GBP