Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 2546950254

Certificate GIA 2546950254

Diamond specifications and retailer prices

From £2,542 GBP
As of November 4, 2026
Save £2,879 GBP (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,421 GBP at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2546950254. Listed at 15 retailers as of November 4, 2026, with prices from £2,542 to £5,421, a £2,879 spread on the same certified stone. NZ Jewellers lists it at £5,421. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546950254
Dimensions9.89 × 5.15 × 3.20 mm
L/W Ratio1.92
Top View
9.89 mm5.15 mm1.00 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546950254
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £5,421 GBP|Low: £2,542 GBP|High: £5,421 GBP|Avg: £3,473 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
November 6, 2026
Retailer 3£2,542 GBP
Retailer 15£2,738 GBP
Retailer 4£2,872 GBP
Retailer 14£2,957 GBP
Retailer 5£3,112 GBP
Retailer 11£3,112 GBP
Retailer 12£3,112 GBP
Retailer 8£3,133 GBP
Retailer 13£3,221 GBP
Retailer 7£3,365 GBP
Retailer 2£3,502 GBP
Retailer 6£3,590 GBP
Retailer 9£3,798 GBP
Retailer 10£5,190 GBP
NZ Jewellers£5,421 GBP

44 data points across 15 retailers

15 retailers£2,542 GBP to £5,421 GBP

B+
Cheapest Retailer
-
£2,542 GBP
B+
Retailer 2
-
£2,738 GBP
View
B+
Retailer 3
-
£2,872 GBP
View
Final sale: no returns
B+
Retailer 4
-
£2,957 GBP
View
B+
Retailer 5
-
£3,112 GBP
View
Retailer 6
-
£3,112 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£3,112 GBP
View
B+
Retailer 8
-
£3,133 GBP
View
B
Retailer 9
-
£3,221 GBP
View
Retailer 10
-
£3,365 GBP
View
Price last confirmed 28 days ago
B+
Retailer 11
-
£3,502 GBP
View
B
Retailer 12
-
£3,590 GBP
View
B
Retailer 13
-
£3,798 GBP
View
B
Retailer 14
-
£5,190 GBP
View
Most Expensive
B
NZ Jewellers
1dafb0bd-4085-46b7-8cee-0ef91fc20194 · Nov 5
£5,421 GBP
$7,296 USD
View
14 more retailers have this diamond
Prices start from £2,542 GBPSave up to £2,879 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.

B+
1.00ct Marquise
£2,542 GBP