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Marquise|Natural|IGI

1.30ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 836679981

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 836679981

Diamond specifications and retailer prices

From £1,818 GBP
As of November 2, 2026
Save £2,079 GBP (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,897 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 836679981. Listed at 7 retailers as of November 2, 2026, with prices from £1,818 to £3,897, a £2,079 spread on the same certified stone. NZ Jewellers lists it at £3,897. 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

1.30
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle37.9°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 836679981
Dimensions10.99 × 5.61 × 3.57 mm
L/W Ratio1.96
Girdle conditionFaceted
Top View
10.99 mm5.61 mm1.30 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 836679981
Side View
Table 61.0%Crown 37.9°Girdle: STK-THKPavilion 40.8°CuletDepth 63.6%

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 2
Current: £3,897 GBP|Low: £1,817 GBP|High: £3,919 GBP|Avg: £2,410 GBP|-0.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2£1,818 GBP
Retailer 4£1,849 GBP
Retailer 6£1,864 GBP
Retailer 7£1,935 GBP
Retailer 5£1,950 GBP
Retailer 3£3,266 GBP
NZ Jewellers£3,897 GBP

28 data points across 7 retailers

7 retailers£1,818 GBP to £3,897 GBP

A
Cheapest Retailer
-
£1,818 GBP
A
Retailer 2
-
£1,849 GBP
View
A
Retailer 3
-
£1,864 GBP
View
B+
Retailer 4
-
£1,935 GBP
View
B+
Retailer 5
-
£1,950 GBP
View
B+
Retailer 6
-
£3,266 GBP
View
Most Expensive
B
NZ Jewellers
ac1cc49e-6eb3-46d2-9667-4f6ab70c7206 · Nov 3
£3,897 GBP
$5,216 USD
View
6 more retailers have this diamond
Prices start from £1,818 GBPSave up to £2,079 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
1.30ct Marquise
£1,818 GBP