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Marquise|Natural|GIA

1.01ct F SI2 Marquise Natural Diamond

ID • F/SI2 • GIA 1242005806

Certificate GIA 1242005806

Diamond specifications and retailer prices

From £1,674 GBP
As of November 6, 2026
Save £2,122 GBP (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,094 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 1242005806. Listed at 14 retailers as of November 2, 2026, with a 127% 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242005806
Dimensions10.21 × 5.25 × 3.32 mm
L/W Ratio1.94
Girdle conditionFaceted
Top View
10.21 mm5.25 mm1.01 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242005806
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

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: £2,152 GBP|Low: £1,652 GBP|High: £3,977 GBP|Avg: £2,340 GBP|-2.1%
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
Retailer 14
November 4, 2026
Retailer 2£1,652 GBP
Retailer 11£1,674 GBP
Retailer 3£1,777 GBP
Retailer 8£1,830 GBP
Retailer 14£1,897 GBP
Retailer 5£1,907 GBP
Retailer 10£1,951 GBP
Retailer 6£2,093 GBP
Retailer 9£2,152 GBP
Retailer 1£2,152 GBP
Retailer 7£2,554 GBP
Retailer 12£3,250 GBP
Retailer 4£3,399 GBP
Retailer 13£3,795 GBP

36 data points across 14 retailers

14 retailers£1,674 GBP to £3,795 GBP

Retailer 1
-
£1,652 GBP
Price last confirmed 10 days ago
A
Retailer 2
-
£1,674 GBP
View
A
Retailer 3
-
£1,777 GBP
View
A
Retailer 4
-
£1,830 GBP
View
A
Retailer 5
-
£1,907 GBP
View
A
Retailer 6
-
£1,951 GBP
View
Retailer 7
-
£2,093 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£2,152 GBP
View
A
Retailer 9
-
£2,152 GBP
View
B+
Retailer 10
-
£2,554 GBP
View
B
Retailer 11
-
£3,250 GBP
View
Retailer 12
-
£3,399 GBP
View
Price last confirmed 11 days ago
B
Retailer 13
-
£3,795 GBP
View
Most Expensive
NZ Jewellers
4ce5edfa-03e5-425f-b0f5-b138834f579a · Sep 30
£4,094 GBP
$5,480 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from £1,674 GBPSave up to £2,122 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
£1,674 GBP