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Marquise|Natural|IGI

1.00ct H I1 Marquise Natural Diamond

VG • H/I1 • IGI 743535365

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 743535365

Diamond specifications and retailer prices

From £1,276 GBP
$1,712 USD
As of November 1, 2026
Save £2,139 GBP (63%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,415 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 743535365. Listed at 9 retailers as of October 30, 2026, with prices from £1,276 to £3,415, a £2,139 spread on the same certified stone. NZ Jewellers lists it at £3,415. 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 angle32.9°
Pavilion angle38.4°
OriginNatural
Grading LabIGI
CertificateIGI 743535365
Dimensions9.41 × 5.41 × 3.26 mm
L/W Ratio1.74
Girdle conditionFaceted
Culet sizePointed
Top View
9.41 mm5.41 mm1.00 ctH / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 743535365
Side View
Table 55.0%Crown 32.9°Girdle: STK-THKPavilion 38.4°Culet: NoneDepth 60.3%

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: £1,912 GBP|Low: £1,276 GBP|High: £1,912 GBP|Avg: £1,542 GBP|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£1,276 GBP
Retailer 3£1,400 GBP
Retailer 2£1,468 GBP
Retailer 4£1,666 GBP
Retailer 1£1,912 GBP

17 data points across 5 retailers

9 retailers£1,276 GBP to £3,415 GBP

B+
Cheapest Retailer
-
£1,276 GBP
$1,712 USD
B+
Retailer 2
-
£1,400 GBP
$1,879 USD
View
B+
Retailer 3
-
£1,400 GBP
$1,879 USD
View
B+
Retailer 4
-
£1,465 GBP
$1,966 USD
View
B+
Retailer 5
-
£1,468 GBP
$1,970 USD
View
Retailer 6
-
£1,616 GBP
$2,168 USD
View
Price last confirmed 56 days ago
B+
Retailer 7
-
£1,616 GBP
$2,168 USD
View
B
Retailer 8
-
£1,912 GBP
€2,443 EUR
View
Most Expensive
C
NZ Jewellers
a704883b-7ab6-4fe6-a063-8a7abc49718f · Oct 30
£3,415 GBP
$4,583 USD
View
8 more retailers have this diamond
Prices start from £1,276 GBPSave up to £2,139 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
£1,276 GBP