CaratHunter
Plans
Marquise|Natural|IGI

1.00ct I VS1 Marquise Natural Diamond

VG • I/VS1 • IGI 801639655

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 801639655

Diamond specifications and retailer prices

From £1,686 GBP
$2,240 USD
As of October 28, 2026
Save £2,347 GBP (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,033 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 801639655. Listed at 17 retailers as of October 27, 2026, with prices from £1,686 to £4,033, a £2,347 spread on the same certified stone. NZ Jewellers lists it at £4,033. 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
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle38.3°
OriginNatural
Grading LabIGI
CertificateIGI 801639655
Dimensions9.28 × 5.33 × 3.37 mm
L/W Ratio1.74
Girdle conditionFaceted
Top View
9.28 mm5.33 mm1.00 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801639655
Side View
Table 57.0%Crown 35.7°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 63.2%

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: Oct 28
Current: £4,033 GBP|Low: £1,632 GBP|High: £4,219 GBP|Avg: £2,355 GBP|-4.4%
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
October 29, 2026
Retailer 5£1,686 GBP
Retailer 7£1,742 GBP
Retailer 17£1,742 GBP
Retailer 6£1,780 GBP
Retailer 4£1,801 GBP
Retailer 2£1,854 GBP
Retailer 3£1,929 GBP
Retailer 15£1,929 GBP
Retailer 16£2,018 GBP
Retailer 8£2,035 GBP
Retailer 12£2,086 GBP
Retailer 13£2,226 GBP
Retailer 14£2,349 GBP
Retailer 11£2,405 GBP
Retailer 9£2,776 GBP
Retailer 10£3,398 GBP
NZ Jewellers£4,033 GBP

36 data points across 17 retailers

17 retailers£1,686 GBP to £4,033 GBP

A
Cheapest Retailer
-
£1,686 GBP
$2,240 USD
A
Retailer 2
-
£1,742 GBP
$2,315 USD
View
A
Retailer 3
-
£1,742 GBP
$2,315 USD
View
A
Retailer 4
-
£1,780 GBP
$2,365 USD
View
Final sale: no returns
A
Retailer 5
-
£1,801 GBP
$2,393 USD
View
A
Retailer 6
-
£1,854 GBP
View
A
Retailer 7
-
£1,929 GBP
$2,563 USD
View
A
Retailer 8
-
£1,929 GBP
$2,563 USD
View
A
Retailer 9
-
£2,018 GBP
$2,682 USD
View
A
Retailer 10
-
£2,035 GBP
$2,704 USD
View
A
Retailer 11
-
£2,086 GBP
View
A
Retailer 12
-
£2,226 GBP
$2,958 USD
View
A
Retailer 13
-
£2,349 GBP
ZAR 50,427 ZAR
View
A
Retailer 14
-
£2,405 GBP
€3,044 EUR
View
B+
Retailer 15
-
£2,776 GBP
View
B
Retailer 16
-
£3,398 GBP
View
Most Expensive
B
NZ Jewellers
436f37b0-8822-4d96-98af-ae1026f10194 · Oct 27
£4,033 GBP
$5,359 USD
View
16 more retailers have this diamond
Prices start from £1,686 GBPSave up to £2,347 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
£1,686 GBP