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Marquise|Natural|IGI

1.00ct H I1 Marquise Natural Diamond

VG • H/I1 • IGI 700529130

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 700529130

Diamond specifications and retailer prices

From £814 GBP
$1,091 USD
As of November 1, 2026
Save £1,259 GBP (61%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,073 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 700529130. Listed at 8 retailers as of October 30, 2026, with prices from £814 to £2,073, a £1,259 spread on the same certified stone. NZ Jewellers lists it at £2,073. 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
H
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.2°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 700529130
Dimensions9.44 × 5.36 × 3.38 mm
L/W Ratio1.76
Girdle conditionFaceted
Culet sizePointed
Top View
9.44 mm5.36 mm1.00 ctH / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 700529130
Side View
Table 61.0%Crown 36.2°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 63.1%

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 1
Current: £2,073 GBP|Low: £597 GBP|High: £2,073 GBP|Avg: £1,011 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10£597 GBP
Retailer 5£814 GBP
Retailer 7£850 GBP
Retailer 8£850 GBP
Retailer 4£882 GBP
Retailer 3£883 GBP
Retailer 6£981 GBP
Retailer 9£1,011 GBP
Retailer 2£1,190 GBP
NZ Jewellers£2,073 GBP

17 data points across 10 retailers

8 retailers£814 GBP to £2,073 GBP

B+
Cheapest Retailer
-
£814 GBP
$1,091 USD
B+
Retailer 2
-
£850 GBP
$1,139 USD
View
B+
Retailer 3
-
£850 GBP
$1,139 USD
View
B+
Retailer 4
-
£882 GBP
$1,182 USD
View
B+
Retailer 5
-
£883 GBP
$1,183 USD
View
B+
Retailer 6
-
£981 GBP
$1,314 USD
View
B+
Retailer 7
-
£1,190 GBP
€1,518 EUR
View
Most Expensive
B
NZ Jewellers
6df4b4b4-ce1e-42a8-93d7-dc85b49126be · Oct 30
£2,073 GBP
$2,778 USD
View
7 more retailers have this diamond
Prices start from £814 GBPSave up to £1,259 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+
1.00ct Marquise
£814 GBP