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Marquise|Natural|IGI

1.00ct J VS1 Marquise Natural Diamond

VG • J/VS1 • IGI 689598857

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 689598857

Diamond specifications and retailer prices

From £1,139 GBP
As of November 4, 2026
Save £1,910 GBP (63%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,050 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 689598857. Listed at 19 retailers as of November 4, 2026, with prices from £1,139 to £3,050, a £1,910 spread on the same certified stone. NZ Jewellers lists it at £3,050. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.1°
Pavilion angle39.4°
OriginNatural
Grading LabIGI
CertificateIGI 689598857
Dimensions9.10 × 5.05 × 3.46 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Top View
9.10 mm5.05 mm1.00 ctJ / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 689598857
Side View
Table 60.0%Crown 38.1°Girdle: STK-VTKPavilion 39.4°Culet: NoneDepth 68.5%

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: £3,050 GBP|Low: £1,122 GBP|High: £3,236 GBP|Avg: £1,577 GBP|-5.8%
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
November 6, 2026
Retailer 14£1,139 GBP
Retailer 16£1,154 GBP
Retailer 13£1,210 GBP
Retailer 4£1,229 GBP
Retailer 11£1,250 GBP
Retailer 7£1,294 GBP
Retailer 3£1,308 GBP
Retailer 6£1,327 GBP
Retailer 2£1,352 GBP
Retailer 8£1,390 GBP
Retailer 10£1,411 GBP
Retailer 5£1,443 GBP
Retailer 12£1,526 GBP
Retailer 9£1,698 GBP
Retailer 15£2,318 GBP
NZ Jewellers£3,050 GBP

43 data points across 16 retailers

19 retailers£1,139 GBP to £3,050 GBP

A
Cheapest Retailer
-
£1,139 GBP
A
Retailer 2
-
£1,154 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,210 GBP
View
A
Retailer 4
-
£1,229 GBP
View
Retailer 5
-
£1,250 GBP
View
Price last confirmed 53 days ago
B+
Retailer 6
-
£1,250 GBP
View
B+
Retailer 7
-
£1,281 GBP
View
B+
Retailer 8
-
£1,294 GBP
View
A
Retailer 9
-
£1,308 GBP
View
Retailer 10
-
£1,327 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£1,352 GBP
View
B+
Retailer 12
-
£1,390 GBP
View
A
Retailer 13
-
£1,411 GBP
View
Retailer 14
-
£1,443 GBP
View
Price last confirmed 61 days ago
B+
Retailer 15
-
£1,443 GBP
View
A
Retailer 16
-
£1,526 GBP
View
B+
Retailer 17
-
£1,698 GBP
View
B
Retailer 18
-
£2,318 GBP
View
Most Expensive
C
NZ Jewellers
254b74e6-3f8e-45ef-8f8f-14c4fc0eec2d · Nov 5
£3,050 GBP
$4,082 USD
View
18 more retailers have this diamond
Prices start from £1,139 GBPSave up to £1,910 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
£1,139 GBP