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Marquise|Natural|IGI

1.02ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 803673761

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803673761

Diamond specifications and retailer prices

From £650 GBP
As of November 6, 2026
Save £1,414 GBP (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,064 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 803673761. Listed at 16 retailers as of November 5, 2026, with prices from £650 to £2,064, a £1,414 spread on the same certified stone. NZ Jewellers lists it at £2,064. 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

1.02
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 803673761
Dimensions9.29 × 5.41 × 3.47 mm
L/W Ratio1.72
Girdle conditionFaceted
Top View
9.29 mm5.41 mm1.02 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803673761
Side View
Table 61.0%Crown 39.3°Girdle: STK-THKPavilion 40.1°CuletDepth 64.1%

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 6
Current: £2,064 GBP|Low: £650 GBP|High: £2,064 GBP|Avg: £1,008 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£650 GBP
Retailer 4£814 GBP
Retailer 5£821 GBP
Retailer 3£846 GBP
Retailer 10£846 GBP
Retailer 12£879 GBP
Retailer 6£971 GBP
Retailer 11£976 GBP
Retailer 7£1,033 GBP
Retailer 9£1,179 GBP
Retailer 8£1,545 GBP
NZ Jewellers£2,064 GBP

27 data points across 12 retailers

16 retailers£650 GBP to £2,064 GBP

A
Cheapest Retailer
-
£650 GBP
Retailer 2
-
£769 GBP
View
Price last confirmed 95 days ago
B+
Retailer 3
-
£811 GBP
View
B+
Retailer 4
-
£814 GBP
View
B+
Retailer 5
-
£821 GBP
View
Retailer 6
-
£846 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£846 GBP
View
B+
Retailer 8
-
£879 GBP
View
B+
Retailer 9
-
£899 GBP
View
B+
Retailer 10
-
£946 GBP
View
B+
Retailer 11
-
£971 GBP
View
B+
Retailer 12
-
£976 GBP
View
B+
Retailer 13
-
£1,033 GBP
View
B+
Retailer 14
-
£1,179 GBP
View
B+
Retailer 15
-
£1,545 GBP
View
Most Expensive
B
NZ Jewellers
c45a6e9f-004b-484e-993a-3bee19c29f77 · Nov 5
£2,064 GBP
$2,778 USD
View
15 more retailers have this diamond
Prices start from £650 GBPSave up to £1,414 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
1.02ct Marquise
£650 GBP