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Marquise|Natural|GIA

1.01ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 5566226799

Certificate GIA 5566226799

Diamond specifications and retailer prices

From £1,986 GBP
As of November 3, 2026
Save £2,620 GBP (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,606 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5566226799. Listed at 18 retailers as of November 3, 2026, with prices from £1,986 to £4,606, a £2,620 spread on the same certified stone. NZ Jewellers lists it at £4,606. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.01
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566226799
Dimensions12.26 × 5.20 × 2.75 mm
L/W Ratio2.36
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
12.26 mm5.20 mm1.01 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566226799
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 52.9%

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 3
Current: £2,736 GBP|Low: £1,983 GBP|High: £4,474 GBP|Avg: £2,827 GBP|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 3£1,986 GBP
Retailer 8£2,100 GBP
Retailer 6£2,729 GBP
Retailer 1£2,736 GBP
Retailer 7£2,832 GBP
Retailer 2£2,906 GBP
Retailer 5£3,250 GBP
Retailer 4£4,421 GBP

35 data points across 8 retailers

18 retailers£1,986 GBP to £4,606 GBP

A
Cheapest Retailer
-
£1,986 GBP
B+
Retailer 2
-
£2,100 GBP
View
Final sale: no returns
B+
Retailer 3
-
£2,347 GBP
View
B
Retailer 4
-
£2,479 GBP
View
B
Retailer 5
-
£2,543 GBP
View
B
Retailer 6
-
£2,644 GBP
View
B
Retailer 7
-
£2,644 GBP
View
B
Retailer 8
-
£2,729 GBP
View
B+
Retailer 9
-
£2,736 GBP
View
B
Retailer 10
-
£2,746 GBP
View
B
Retailer 11
-
£2,752 GBP
View
Retailer 12
-
£2,832 GBP
View
Price last confirmed 27 days ago
B
Retailer 13
-
£2,863 GBP
View
B
Retailer 14
-
£2,906 GBP
View
B
Retailer 15
-
£3,051 GBP
View
B
Retailer 16
-
£3,250 GBP
View
B
Retailer 17
-
£4,421 GBP
View
Most Expensive
C
NZ Jewellers
e0954fc2-800a-4c3c-8b2c-0b2886fb216b · Nov 3
£4,606 GBP
$6,177 USD
View
17 more retailers have this diamond
Prices start from £1,986 GBPSave up to £2,620 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
£1,986 GBP