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Marquise|Natural|IGI

1.70ct F SI2 Marquise Natural Diamond

VG • F/SI2 • IGI 743558381

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 743558381

Diamond specifications and retailer prices

From £4,665 GBP
₹596,165 INR
As of November 2, 2026
Save £3,841 GBP (45%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £8,505 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 743558381. Listed at 7 retailers as of November 2, 2026, with prices from £4,665 to £8,505, a £3,841 spread on the same certified stone. MOH London lists it at £8,505. 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

1.70
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 743558381
Dimensions11.86 × 6.28 × 3.88 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Top View
11.86 mm6.28 mm1.70 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743558381
Side View
Table 63.0%Crown 33.5°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 61.8%

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: £8,505 GBP|Low: £4,655 GBP|High: £8,607 GBP|Avg: £5,823 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2£4,665 GBP
Retailer 4£4,855 GBP
Retailer 5£4,994 GBP
Retailer 6£5,340 GBP
Retailer 7£5,473 GBP
Retailer 3£6,376 GBP
MOH London£8,505 GBP

42 data points across 7 retailers

7 retailers£4,665 GBP to £8,505 GBP

A
Cheapest Retailer
-
£4,665 GBP
₹596,165 INR
A
Retailer 2
-
£4,855 GBP
$6,515 USD
View
A
Retailer 3
-
£4,994 GBP
$6,702 USD
View
A
Retailer 4
-
£5,340 GBP
$7,166 USD
View
A
Retailer 5
-
£5,473 GBP
$7,344 USD
View
A
Retailer 6
-
£6,376 GBP
€8,149 EUR
View
Most Expensive
B
MOH London
8C88C60AB · Nov 2
£8,505 GBP
View
6 more retailers have this diamond
Prices start from £4,665 GBPSave up to £3,841 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
1.70ct Marquise
£4,665 GBP