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Marquise|Natural|GIA

1.01ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2556600147

Certificate GIA 2556600147

Diamond specifications and retailer prices

From £2,322 GBP
As of November 6, 2026
Save £3,109 GBP (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £5,431 GBP at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556600147. Listed at 22 retailers as of November 5, 2026, with prices from £2,322 to £5,431, a £3,109 spread on the same certified stone. NZ Jewellers lists it at £5,431. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556600147
Dimensions11.76 × 5.03 × 3.04 mm
L/W Ratio2.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Natural
Top View
11.76 mm5.03 mm1.01 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556600147
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.4%

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: £2,322 GBP|Low: £2,322 GBP|High: £5,275 GBP|Avg: £3,398 GBP|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1£2,322 GBP
Retailer 7£2,966 GBP
Retailer 2£3,024 GBP
Retailer 4£3,139 GBP
Retailer 3£3,306 GBP
Retailer 5£3,804 GBP
Retailer 6£5,198 GBP

28 data points across 7 retailers

22 retailers£2,322 GBP to £5,431 GBP

A
Cheapest Retailer
-
£2,322 GBP
A
Retailer 2
-
£2,479 GBP
View
Final sale: no returns
A
Retailer 3
-
£2,587 GBP
View
B+
Retailer 4
-
£2,661 GBP
View
B+
Retailer 5
-
£2,663 GBP
View
B+
Retailer 6
-
£2,743 GBP
View
B+
Retailer 7
-
£2,886 GBP
View
B+
Retailer 8
-
£2,966 GBP
View
B+
Retailer 9
-
£3,024 GBP
View
B+
Retailer 10
-
£3,117 GBP
View
B+
Retailer 11
-
£3,117 GBP
View
Retailer 12
-
£3,117 GBP
View
Price last confirmed 21 days ago
B+
Retailer 13
-
£3,139 GBP
View
B+
Retailer 14
-
£3,228 GBP
View
B+
Retailer 15
-
£3,306 GBP
View
B+
Retailer 16
-
£3,309 GBP
View
Retailer 17
-
£3,342 GBP
View
Price last confirmed 33 days ago
B+
Retailer 18
-
£3,597 GBP
View
Retailer 19
-
£3,717 GBP
View
Price last confirmed 61 days ago
B+
Retailer 20
-
£3,804 GBP
View
B
Retailer 21
-
£5,198 GBP
View
Most Expensive
B
NZ Jewellers
98697e1e-5f96-48ce-8e21-f3ff3dc5e1f6 · Nov 5
£5,431 GBP
$7,269 USD
View
21 more retailers have this diamond
Prices start from £2,322 GBPSave up to £3,109 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
£2,322 GBP