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Marquise|Natural|GIA

1.01ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 1555813367

Certificate GIA 1555813367

Diamond specifications and retailer prices

From £1,240 GBP
As of November 4, 2026
Save £2,081 GBP (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,321 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555813367. Listed at 12 retailers as of November 4, 2026, with prices from £1,240 to £3,321, a £2,081 spread on the same certified stone. NZ Jewellers lists it at £3,321. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555813367
Dimensions9.74 × 5.41 × 3.26 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Cavity, Cloud, Needle, Indented Natural
Top View
9.74 mm5.41 mm1.01 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555813367
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.4%

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 4
Current: £3,321 GBP|Low: £1,225 GBP|High: £3,530 GBP|Avg: £1,673 GBP|-5.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11£1,240 GBP
Retailer 10£1,256 GBP
Retailer 3£1,336 GBP
Retailer 2£1,357 GBP
Retailer 12£1,362 GBP
Retailer 4£1,390 GBP
Retailer 8£1,425 GBP
Retailer 5£1,462 GBP
Retailer 6£1,511 GBP
Retailer 9£1,571 GBP
Retailer 7£2,380 GBP
NZ Jewellers£3,321 GBP

32 data points across 12 retailers

12 retailers£1,240 GBP to £3,321 GBP

A
Cheapest Retailer
-
£1,240 GBP
A
Retailer 2
-
£1,256 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,336 GBP
View
A
Retailer 4
-
£1,357 GBP
View
A
Retailer 5
-
£1,362 GBP
View
Retailer 6
-
£1,390 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£1,425 GBP
View
A
Retailer 8
-
£1,462 GBP
View
B+
Retailer 9
-
£1,511 GBP
View
B+
Retailer 10
-
£1,571 GBP
View
B
Retailer 11
-
£2,380 GBP
View
Most Expensive
B
NZ Jewellers
7ad78c46-7a60-4994-a3b0-5bfbb65b69f2 · Nov 5
£3,321 GBP
$4,445 USD
View
11 more retailers have this diamond
Prices start from £1,240 GBPSave up to £2,081 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
£1,240 GBP