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Marquise|Natural|GIA

1.01ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 2564422318

Certificate GIA 2564422318

Diamond specifications and retailer prices

From £1,878 GBP
As of November 6, 2026
Save £2,592 GBP (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,470 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564422318. Listed at 18 retailers as of November 5, 2026, with prices from £1,878 to £4,470, a £2,592 spread on the same certified stone. NZ Jewellers lists it at £4,470. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564422318
Dimensions11.46 × 4.96 × 3.15 mm
L/W Ratio2.31
Culet sizeNone
Key to symbols
Crystal, Feather, Natural
Top View
11.46 mm4.96 mm1.01 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564422318
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,470 GBP|Low: £1,915 GBP|High: £4,470 GBP|Avg: £2,472 GBP
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 6, 2026
Retailer 3£1,915 GBP
Retailer 2£1,954 GBP
Retailer 7£2,024 GBP
Retailer 10£2,055 GBP
Retailer 16£2,096 GBP
Retailer 13£2,102 GBP
Retailer 8£2,136 GBP
Retailer 5£2,138 GBP
Retailer 14£2,220 GBP
Retailer 6£2,244 GBP
Retailer 15£2,244 GBP
Retailer 11£2,444 GBP
Retailer 17£2,492 GBP
Retailer 12£2,610 GBP
Retailer 4£3,225 GBP
Retailer 9£3,580 GBP
NZ Jewellers£4,470 GBP

14 data points across 17 retailers

18 retailers£1,878 GBP to £4,470 GBP

B+
Cheapest Retailer
-
£1,878 GBP
B+
Retailer 2
-
£1,915 GBP
View
B+
Retailer 3
-
£1,954 GBP
View
Final sale: no returns
B
Retailer 4
-
£2,024 GBP
View
B+
Retailer 5
-
£2,055 GBP
View
B
Retailer 6
-
£2,096 GBP
View
B+
Retailer 7
-
£2,102 GBP
View
B+
Retailer 8
-
£2,136 GBP
View
B+
Retailer 9
-
£2,138 GBP
View
B
Retailer 10
-
£2,220 GBP
View
B
Retailer 11
-
£2,244 GBP
View
B
Retailer 12
-
£2,244 GBP
View
B
Retailer 13
-
£2,444 GBP
View
B
Retailer 14
-
£2,492 GBP
View
B
Retailer 15
-
£2,610 GBP
View
B
Retailer 16
-
£3,225 GBP
View
Retailer 17
-
£3,580 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
NZ Jewellers
ffafc3a7-99dc-483f-a4d8-e35f81594b8e · Nov 5
£4,470 GBP
$5,983 USD
View
17 more retailers have this diamond
Prices start from £1,878 GBPSave up to £2,592 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.

B+
1.01ct Marquise
£1,878 GBP