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Marquise|Natural|IGI

1.00ct K SI2 Marquise Natural Diamond

VG • K/SI2 • IGI 788607922

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 788607922

Diamond specifications and retailer prices

From £862 GBP
As of November 5, 2026
Save £1,331 GBP (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,193 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 788607922. Listed at 12 retailers as of November 5, 2026, with prices from £862 to £2,193, a £1,331 spread on the same certified stone. NZ Jewellers lists it at £2,193. 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
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle31.8°
OriginNatural
Grading LabIGI
CertificateIGI 788607922
Dimensions10.54 × 5.24 × 2.97 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Top View
10.54 mm5.24 mm1.00 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 788607922
Side View
Table 57.0%Crown 37.3°Girdle: STK-VTKPavilion 31.8°Culet: NoneDepth 56.7%

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 5
Current: £2,193 GBP|Low: £862 GBP|High: £2,260 GBP|Avg: £1,148 GBP|-3.0%
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
November 6, 2026
Retailer 3£862 GBP
Retailer 11£899 GBP
Retailer 2£906 GBP
Retailer 4£927 GBP
Retailer 10£934 GBP
Retailer 13£935 GBP
Retailer 12£963 GBP
Retailer 6£986 GBP
Retailer 8£1,022 GBP
Retailer 5£1,102 GBP
Retailer 7£1,233 GBP
Retailer 9£1,643 GBP
NZ Jewellers£2,193 GBP

43 data points across 13 retailers

12 retailers£862 GBP to £2,193 GBP

B+
Cheapest Retailer
-
£862 GBP
A
Retailer 2
-
£899 GBP
View
A
Retailer 3
-
£906 GBP
View
Retailer 4
-
£927 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£934 GBP
View
B+
Retailer 6
-
£935 GBP
View
B+
Retailer 7
-
£963 GBP
View
B+
Retailer 8
-
£986 GBP
View
B+
Retailer 9
-
£1,022 GBP
View
B+
Retailer 10
-
£1,233 GBP
View
B+
Retailer 11
-
£1,643 GBP
View
Most Expensive
B
NZ Jewellers
037fd41a-2627-4d31-b2d7-6bf1d495cff7 · Nov 5
£2,193 GBP
$2,952 USD
View
11 more retailers have this diamond
Prices start from £862 GBPSave up to £1,331 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
£862 GBP