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Marquise|Natural|GIA

1.00ct F SI1 Marquise Natural Diamond

GD • F/SI1 • GIA 2556439722

Certificate GIA 2556439722

Diamond specifications and retailer prices

From £2,198 GBP
$2,950 USD
As of November 1, 2026
Save £2,078 GBP (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,276 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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556439722. Listed at 14 retailers as of October 30, 2026, with prices from £2,198 to £4,276, a £2,078 spread on the same certified stone. NZ Jewellers lists it at £4,276. 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556439722
Dimensions11.19 × 5.39 × 2.91 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Indented Natural, Natural
Top View
11.19 mm5.39 mm1.00 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556439722
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 54.0%

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 1
Current: £4,276 GBP|Low: £2,133 GBP|High: £4,394 GBP|Avg: £2,624 GBP|-2.7%
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
November 2, 2026
Retailer 5£2,198 GBP
Retailer 10£2,245 GBP
Retailer 14£2,285 GBP
Retailer 12£2,321 GBP
Retailer 8£2,372 GBP
Retailer 13£2,373 GBP
Retailer 11£2,432 GBP
Retailer 3£2,454 GBP
Retailer 9£2,520 GBP
Retailer 2£2,525 GBP
Retailer 4£2,641 GBP
Retailer 6£2,694 GBP
Retailer 7£2,806 GBP
NZ Jewellers£4,276 GBP

34 data points across 14 retailers

14 retailers£2,198 GBP to £4,276 GBP

B+
Cheapest Retailer
-
£2,198 GBP
$2,950 USD
B+
Retailer 2
-
£2,245 GBP
$3,012 USD
View
Final sale: no returns
B+
Retailer 3
-
£2,285 GBP
$3,067 USD
View
B+
Retailer 4
-
£2,321 GBP
$3,114 USD
View
B+
Retailer 5
-
£2,372 GBP
View
B+
Retailer 6
-
£2,373 GBP
$3,185 USD
View
B+
Retailer 7
-
£2,432 GBP
$3,263 USD
View
B+
Retailer 8
-
£2,454 GBP
$3,293 USD
View
B+
Retailer 9
-
£2,520 GBP
View
B+
Retailer 10
-
£2,525 GBP
$3,389 USD
View
B+
Retailer 11
-
£2,641 GBP
SGD 4,789 SGD
View
Retailer 12
-
£2,694 GBP
A$5,562 AUD
View
Price last confirmed 26 days ago
B
Retailer 13
-
£2,806 GBP
$3,765 USD
View
Most Expensive
B
NZ Jewellers
0948135d-5f6d-485a-b24d-8ae30293e549 · Oct 30
£4,276 GBP
$5,738 USD
View
13 more retailers have this diamond
Prices start from £2,198 GBPSave up to £2,078 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
£2,198 GBP