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Marquise|Natural|GIA

1.01ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 1559021660

Certificate GIA 1559021660

Diamond specifications and retailer prices

From £1,398 GBP
As of November 6, 2026
Save £1,849 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,202 GBP at NZ Jewellers · As of September 25, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559021660. Listed at 12 retailers as of November 2, 2026, with a 132% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1559021660
Dimensions10.26 × 5.28 × 3.33 mm
L/W Ratio1.94
Girdle conditionFaceted
Top View
10.26 mm5.28 mm1.01 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1559021660
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,294 GBP|Low: £1,369 GBP|High: £3,563 GBP|Avg: £2,008 GBP|-6.1%
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 6£1,398 GBP
Retailer 7£1,531 GBP
Retailer 8£1,550 GBP
Retailer 10£1,642 GBP
Retailer 2£1,669 GBP
Retailer 9£1,739 GBP
Retailer 11£1,753 GBP
Retailer 4£1,789 GBP
Retailer 1£2,294 GBP
Retailer 3£2,800 GBP
Retailer 5£3,247 GBP

40 data points across 11 retailers

12 retailers£1,398 GBP to £3,247 GBP

A
Cheapest Retailer
-
£1,398 GBP
A
Retailer 2
-
£1,531 GBP
View
A
Retailer 3
-
£1,550 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,642 GBP
View
Retailer 5
-
£1,669 GBP
View
Price last confirmed 9 days ago
A
Retailer 6
-
£1,739 GBP
View
A
Retailer 7
-
£1,753 GBP
View
A
Retailer 8
-
£1,789 GBP
View
A
Retailer 9
-
£2,294 GBP
View
Retailer 10
-
£2,800 GBP
View
Price last confirmed 14 days ago
B+
Retailer 11
-
£3,247 GBP
View
Most Expensive
NZ Jewellers
52621827-2105-4d5c-aff5-3cbf5742e621 · Sep 25
£4,202 GBP
$5,655 USD
View
Price last confirmed 42 days ago
11 more retailers have this diamond
Prices start from £1,398 GBPSave up to £1,849 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
£1,398 GBP