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Marquise|Natural|GIA

1.00ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 7556937327

Certificate GIA 7556937327

Diamond specifications and retailer prices

From £1,382 GBP
As of November 6, 2026
Save £2,498 GBP (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,880 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded J 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 7556937327. Listed at 18 retailers as of November 5, 2026, with prices from £1,382 to £3,880, a £2,498 spread on the same certified stone. NZ Jewellers lists it at £3,880. 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

1.00
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556937327
Dimensions9.67 × 5.08 × 3.26 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
9.67 mm5.08 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556937327
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.2%

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 6
Current: £1,382 GBP|Low: £1,382 GBP|High: £3,286 GBP|Avg: £1,979 GBP|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1£1,382 GBP
Retailer 10£1,469 GBP
Retailer 7£1,627 GBP
Retailer 8£1,842 GBP
Retailer 2£1,941 GBP
Retailer 5£1,963 GBP
Retailer 3£2,161 GBP
Retailer 4£2,264 GBP
Retailer 9£2,284 GBP
Retailer 6£3,251 GBP

37 data points across 10 retailers

18 retailers£1,382 GBP to £3,880 GBP

A
Cheapest Retailer
-
£1,382 GBP
B+
Retailer 2
-
£1,469 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,627 GBP
View
B+
Retailer 4
-
£1,676 GBP
View
B
Retailer 5
-
£1,842 GBP
View
B
Retailer 6
-
£1,856 GBP
View
Retailer 7
-
£1,856 GBP
View
Price last confirmed 8 days ago
B
Retailer 8
-
£1,941 GBP
View
B
Retailer 9
-
£1,960 GBP
View
B
Retailer 10
-
£1,963 GBP
View
B
Retailer 11
-
£2,092 GBP
View
B
Retailer 12
-
£2,141 GBP
View
B
Retailer 13
-
£2,141 GBP
View
B
Retailer 14
-
£2,161 GBP
View
B
Retailer 15
-
£2,264 GBP
View
Retailer 16
-
£2,284 GBP
View
Price last confirmed 30 days ago
B
Retailer 17
-
£3,251 GBP
View
Most Expensive
C
NZ Jewellers
a3d167ee-ef04-4df8-83e5-24feabbba1a8 · Nov 5
£3,880 GBP
$5,193 USD
View
17 more retailers have this diamond
Prices start from £1,382 GBPSave up to £2,498 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
1.00ct Marquise
£1,382 GBP