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Marquise|Natural|GIA

1.00ct G SI2 Marquise Natural Diamond

ID • G/SI2 • GIA 2566164747

Certificate GIA 2566164747

Diamond specifications and retailer prices

From £1,750 GBP
As of November 6, 2026
Save £2,305 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,055 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566164747. Listed at 13 retailers as of November 5, 2026, with prices from £1,750 to £4,055, a £2,305 spread on the same certified stone. NZ Jewellers lists it at £4,055. 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
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566164747
Dimensions10.10 × 5.18 × 3.24 mm
L/W Ratio1.95
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
10.10 mm5.18 mm1.00 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566164747
Side View
Table 60.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 62.6%

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: £4,055 GBP|Low: £1,736 GBP|High: £4,095 GBP|Avg: £2,506 GBP|-0.8%
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
November 6, 2026
Retailer 8£1,750 GBP
Retailer 2£1,751 GBP
Retailer 9£2,040 GBP
Retailer 3£2,148 GBP
Retailer 4£2,188 GBP
Retailer 6£2,288 GBP
Retailer 11£2,327 GBP
Retailer 10£2,417 GBP
Retailer 13£2,438 GBP
Retailer 12£2,498 GBP
Retailer 5£2,685 GBP
Retailer 7£3,881 GBP
NZ Jewellers£4,055 GBP

38 data points across 13 retailers

13 retailers£1,750 GBP to £4,055 GBP

A
Cheapest Retailer
-
£1,750 GBP
A
Retailer 2
-
£1,751 GBP
View
Retailer 3
-
£2,040 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£2,148 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,188 GBP
View
B+
Retailer 6
-
£2,288 GBP
View
B+
Retailer 7
-
£2,327 GBP
View
B+
Retailer 8
-
£2,417 GBP
View
Retailer 9
-
£2,438 GBP
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£2,498 GBP
View
B+
Retailer 11
-
£2,685 GBP
View
B
Retailer 12
-
£3,881 GBP
View
Most Expensive
B
NZ Jewellers
9ad33332-9428-4058-956d-41d16507bde1 · Nov 5
£4,055 GBP
$5,427 USD
View
12 more retailers have this diamond
Prices start from £1,750 GBPSave up to £2,305 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
£1,750 GBP