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Marquise|Natural|GIA

1.01ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1559151277

Certificate GIA 1559151277

Diamond specifications and retailer prices

From £2,343 GBP
As of November 6, 2026
Save £3,058 GBP (57%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £5,401 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 1559151277. Listed at 24 retailers as of November 5, 2026, with prices from £2,343 to £5,401, a £3,058 spread on the same certified stone. NZ Jewellers lists it at £5,401. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559151277
Dimensions10.82 × 5.14 × 3.06 mm
L/W Ratio2.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Knot, Cloud, Crystal, Feather, Etch Channel, Needle
Top View
10.82 mm5.14 mm1.01 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559151277
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 59.4%

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: £5,401 GBP|Low: £2,324 GBP|High: £5,512 GBP|Avg: £3,397 GBP|-2.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 20£2,343 GBP
Retailer 2£2,421 GBP
Retailer 11£2,766 GBP
Retailer 7£2,776 GBP
Retailer 17£2,797 GBP
Retailer 12£2,861 GBP
Retailer 14£2,950 GBP
Retailer 13£3,007 GBP
Retailer 5£3,100 GBP
Retailer 6£3,100 GBP
Retailer 8£3,100 GBP
Retailer 15£3,121 GBP
Retailer 4£3,210 GBP
Retailer 9£3,213 GBP
Retailer 19£3,507 GBP
Retailer 3£3,576 GBP
Retailer 16£3,783 GBP
Retailer 10£4,554 GBP
Retailer 18£5,170 GBP
NZ Jewellers£5,401 GBP

22 data points across 20 retailers

24 retailers£2,343 GBP to £5,401 GBP

A
Cheapest Retailer
-
£2,343 GBP
A
Retailer 2
-
£2,421 GBP
View
B+
Retailer 3
-
£2,766 GBP
View
B+
Retailer 4
-
£2,776 GBP
View
B+
Retailer 5
-
£2,797 GBP
View
B+
Retailer 6
-
£2,861 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,918 GBP
View
B+
Retailer 8
-
£2,921 GBP
View
B+
Retailer 9
-
£2,950 GBP
View
B+
Retailer 10
-
£3,007 GBP
View
B+
Retailer 11
-
£3,077 GBP
View
Retailer 12
-
£3,100 GBP
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£3,100 GBP
View
B+
Retailer 14
-
£3,100 GBP
View
B+
Retailer 15
-
£3,121 GBP
View
B+
Retailer 16
-
£3,210 GBP
View
B+
Retailer 17
-
£3,213 GBP
View
Retailer 18
-
£3,387 GBP
View
Price last confirmed 28 days ago
B+
Retailer 19
-
£3,507 GBP
View
B+
Retailer 20
-
£3,576 GBP
View
B+
Retailer 21
-
£3,783 GBP
View
Retailer 22
-
£4,554 GBP
View
Price last confirmed 9 days ago
B
Retailer 23
-
£5,170 GBP
View
Most Expensive
B
NZ Jewellers
f4ab1fb9-641d-473a-b3fc-5ddeb3849b68 · Nov 5
£5,401 GBP
$7,229 USD
View
23 more retailers have this diamond
Prices start from £2,343 GBPSave up to £3,058 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
£2,343 GBP