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Marquise|Natural|GIA

1.01ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6555744285

Certificate GIA 6555744285

Diamond specifications and retailer prices

From £1,527 GBP
As of November 2, 2026
Save £2,056 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,372 GBP at NZ Jewellers · As of October 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 6555744285. Listed at 20 retailers as of November 1, 2026, with a 135% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555744285
Dimensions9.30 × 5.16 × 3.50 mm
L/W Ratio1.80
Girdle conditionFaceted
Top View
9.30 mm5.16 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555744285
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.8%

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 2
Current: £2,010 GBP|Low: £1,508 GBP|High: £3,634 GBP|Avg: £2,069 GBP|-2.6%
Retailer 1
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
November 3, 2026
Retailer 17£1,527 GBP
Retailer 8£1,607 GBP
Retailer 13£1,664 GBP
Retailer 3£1,725 GBP
Retailer 10£1,741 GBP
Retailer 7£1,777 GBP
Retailer 15£1,836 GBP
Retailer 6£1,853 GBP
Retailer 2£1,898 GBP
Retailer 16£1,909 GBP
Retailer 14£1,976 GBP
Retailer 1£2,010 GBP
Retailer 11£2,105 GBP
Retailer 12£2,476 GBP
Retailer 5£2,536 GBP
Retailer 18£2,893 GBP
Retailer 9£3,048 GBP
Retailer 4£3,583 GBP

17 data points across 18 retailers

20 retailers£1,527 GBP to £3,583 GBP

A
Cheapest Retailer
-
£1,527 GBP
A
Retailer 2
-
£1,607 GBP
View
A
Retailer 3
-
£1,664 GBP
View
A
Retailer 4
-
£1,725 GBP
View
Final sale: no returns
A
Retailer 5
-
£1,741 GBP
View
A
Retailer 6
-
£1,777 GBP
View
A
Retailer 7
-
£1,836 GBP
View
A
Retailer 8
-
£1,853 GBP
View
A
Retailer 9
-
£1,898 GBP
View
A
Retailer 10
-
£1,909 GBP
View
B+
Retailer 11
-
£1,976 GBP
View
B+
Retailer 12
-
£2,010 GBP
View
B+
Retailer 13
-
£2,105 GBP
View
Retailer 14
-
£2,351 GBP
View
Price last confirmed 31 days ago
B+
Retailer 15
-
£2,476 GBP
View
B+
Retailer 16
-
£2,536 GBP
View
B+
Retailer 17
-
£2,893 GBP
View
B
Retailer 18
-
£3,048 GBP
View
B
Retailer 19
-
£3,583 GBP
View
Most Expensive
NZ Jewellers
49fa4e6b-c3f4-4b37-b7b7-17e09dac839d · Oct 3
£4,372 GBP
$5,863 USD
View
Price last confirmed 31 days ago
19 more retailers have this diamond
Prices start from £1,527 GBPSave up to £2,056 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
£1,527 GBP