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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2547325060

Certificate GIA 2547325060

Diamond specifications and retailer prices

From £2,644 GBP
As of November 6, 2026
Save £3,492 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,136 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547325060. Listed at 17 retailers as of November 5, 2026, with prices from £2,644 to £6,136, a £3,492 spread on the same certified stone. NZ Jewellers lists it at £6,136. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle34.87°
Pavilion angle39.61°
OriginNatural
Grading LabGIA
CertificateGIA 2547325060
Dimensions5.28 × 9.99 × 3.21 mm
L/W Ratio1.89
Top View
5.28 mm9.99 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2547325060
Side View
Table 58.0%Crown 34.87°Girdle: Very ThickPavilion 39.61°Culet: NoneDepth 60.8%

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 6
Current: £3,446 GBP|Low: £2,644 GBP|High: £5,677 GBP|Avg: £3,557 GBP|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8£2,644 GBP
Retailer 9£3,030 GBP
Retailer 11£3,077 GBP
Retailer 7£3,191 GBP
Retailer 5£3,242 GBP
Retailer 1£3,446 GBP
Retailer 6£3,550 GBP
Retailer 3£3,635 GBP
Retailer 10£3,682 GBP
Retailer 2£3,889 GBP
Retailer 4£5,609 GBP

41 data points across 11 retailers

17 retailers£2,644 GBP to £6,136 GBP

B+
Cheapest Retailer
-
£2,644 GBP
B+
Retailer 2
-
£2,807 GBP
View
B+
Retailer 3
-
£2,814 GBP
View
B
Retailer 4
-
£2,915 GBP
View
B+
Retailer 5
-
£3,030 GBP
View
B+
Retailer 6
-
£3,077 GBP
View
Retailer 7
-
£3,191 GBP
View
Price last confirmed 8 days ago
B
Retailer 8
-
£3,191 GBP
View
B
Retailer 9
-
£3,191 GBP
View
B
Retailer 10
-
£3,242 GBP
View
B
Retailer 11
-
£3,446 GBP
View
Retailer 12
-
£3,550 GBP
View
Price last confirmed 28 days ago
B
Retailer 13
-
£3,667 GBP
View
B
Retailer 14
-
£3,682 GBP
View
Retailer 15
-
£3,889 GBP
View
Price last confirmed 14 days ago
B
Retailer 16
-
£5,609 GBP
View
Most Expensive
B
NZ Jewellers
7e5e7656-17fe-4d02-8818-bb6d846a2733 · Nov 5
£6,136 GBP
$8,213 USD
View
16 more retailers have this diamond
Prices start from £2,644 GBPSave up to £3,492 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
£2,644 GBP