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Marquise|Natural|GIA

1.01ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6552658852

Certificate GIA 6552658852

Diamond specifications and retailer prices

From £1,822 GBP
As of November 1, 2026
Save £2,401 GBP (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,223 GBP at NZ Jewellers · As of November 3, 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 I 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 6552658852. Listed at 21 retailers as of November 1, 2026, with prices from £1,822 to £4,223, a £2,401 spread on the same certified stone. NZ Jewellers lists it at £4,223. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552658852
Dimensions11.32 × 4.90 × 3.10 mm
L/W Ratio2.31
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity
Top View
11.32 mm4.90 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552658852
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.2%

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 1
Current: £4,223 GBP|Low: £1,813 GBP|High: £4,315 GBP|Avg: £2,650 GBP|-2.1%
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
November 4, 2026
Retailer 16£1,822 GBP
Retailer 12£1,904 GBP
Retailer 13£2,181 GBP
Retailer 8£2,237 GBP
Retailer 10£2,361 GBP
Retailer 3£2,424 GBP
Retailer 5£2,424 GBP
Retailer 2£2,508 GBP
Retailer 4£2,517 GBP
Retailer 17£2,531 GBP
Retailer 7£2,540 GBP
Retailer 6£2,609 GBP
Retailer 9£2,797 GBP
Retailer 11£2,825 GBP
Retailer 15£2,979 GBP
Retailer 14£4,053 GBP
NZ Jewellers£4,223 GBP

24 data points across 17 retailers

21 retailers£1,822 GBP to £4,223 GBP

A
Cheapest Retailer
-
£1,822 GBP
A
Retailer 2
-
£1,904 GBP
View
B+
Retailer 3
-
£2,181 GBP
View
B+
Retailer 4
-
£2,237 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,300 GBP
View
B+
Retailer 6
-
£2,300 GBP
View
B+
Retailer 7
-
£2,361 GBP
View
B+
Retailer 8
-
£2,424 GBP
View
B+
Retailer 9
-
£2,424 GBP
View
B
Retailer 10
-
£2,447 GBP
View
B+
Retailer 11
-
£2,508 GBP
View
B
Retailer 12
-
£2,517 GBP
View
B
Retailer 13
-
£2,531 GBP
View
Retailer 14
-
£2,540 GBP
View
Price last confirmed 8 days ago
B
Retailer 15
-
£2,609 GBP
View
Retailer 16
-
£2,665 GBP
View
Price last confirmed 31 days ago
B
Retailer 17
-
£2,797 GBP
View
B+
Retailer 18
-
£2,825 GBP
View
B
Retailer 19
-
£2,979 GBP
View
B
Retailer 20
-
£4,053 GBP
View
Most Expensive
B
NZ Jewellers
fe29d54f-9b0a-43e9-beb0-0d8e4e5feb30 · Nov 3
£4,223 GBP
$5,664 USD
View
20 more retailers have this diamond
Prices start from £1,822 GBPSave up to £2,401 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
£1,822 GBP