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Marquise|Natural|GIA

1.01ct F SI2 Marquise Natural Diamond

ID • F/SI2 • GIA 1559508930

Certificate GIA 1559508930

Diamond specifications and retailer prices

From £1,482 GBP
As of November 6, 2026
Save £2,025 GBP (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,323 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded F 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 1559508930. Listed at 15 retailers as of November 4, 2026, with a 137% 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

1.01
Carat
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559508930
Dimensions9.99 × 5.14 × 3.28 mm
L/W Ratio1.94
Girdle conditionFaceted
Top View
9.99 mm5.14 mm1.01 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1559508930
Side View
Table 60.0%CrownGirdle: STK-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: Nov 6
Current: £2,977 GBP|Low: £1,473 GBP|High: £3,666 GBP|Avg: £2,153 GBP|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 3£1,482 GBP
Retailer 12£1,618 GBP
Retailer 5£1,678 GBP
Retailer 10£1,732 GBP
Retailer 2£1,742 GBP
Retailer 6£1,775 GBP
Retailer 7£1,848 GBP
Retailer 13£1,898 GBP
Retailer 8£1,898 GBP
Retailer 11£2,506 GBP
Retailer 4£2,876 GBP
Retailer 1£2,977 GBP
Retailer 9£3,508 GBP

38 data points across 13 retailers

15 retailers£1,482 GBP to £3,508 GBP

A
Cheapest Retailer
-
£1,482 GBP
A
Retailer 2
-
£1,618 GBP
View
A
Retailer 3
-
£1,678 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,732 GBP
View
A
Retailer 5
-
£1,742 GBP
View
A
Retailer 6
-
£1,775 GBP
View
A
Retailer 7
-
£1,848 GBP
View
A
Retailer 8
-
£1,898 GBP
View
A
Retailer 9
-
£1,898 GBP
View
A
Retailer 10
-
£2,063 GBP
View
B+
Retailer 11
-
£2,506 GBP
View
B+
Retailer 12
-
£2,876 GBP
View
B+
Retailer 13
-
£2,977 GBP
View
B
Retailer 14
-
£3,508 GBP
View
Most Expensive
NZ Jewellers
d3465c67-5919-46b1-b4ea-53d1cddf45f0 · Sep 30
£4,323 GBP
$5,786 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from £1,482 GBPSave up to £2,025 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
1.01ct Marquise
£1,482 GBP