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Marquise|Natural|IGI

1.20ct G SI2 Marquise Natural Diamond

VG • G/SI2 • IGI 743558958

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 743558958

Diamond specifications and retailer prices

From £1,407 GBP
₹179,799 INR
As of November 2, 2026
Save £1,912 GBP (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,960 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 743558958. Listed at 17 retailers as of November 2, 2026, with a 136% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle37.5°
OriginNatural
Grading LabIGI
CertificateIGI 743558958
Dimensions11.09 × 5.31 × 3.31 mm
L/W Ratio2.09
Girdle conditionFaceted
Top View
11.09 mm5.31 mm1.20 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743558958
Side View
Table 62.0%Crown 45.3°Girdle: MED-THKPavilion 37.5°Culet: NoneDepth 62.3%

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: £1,407 GBP|Low: £1,371 GBP|High: £3,359 GBP|Avg: £1,907 GBP|-4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 1£1,407 GBP
Retailer 9£1,565 GBP
Retailer 11£1,610 GBP
Retailer 7£1,744 GBP
Retailer 2£1,748 GBP
Retailer 3£1,757 GBP
Retailer 4£1,873 GBP
Retailer 8£1,894 GBP
Retailer 10£1,908 GBP
Retailer 5£2,192 GBP
Retailer 6£3,319 GBP

37 data points across 11 retailers

17 retailers£1,407 GBP to £3,319 GBP

A
Cheapest Retailer
-
£1,407 GBP
₹179,799 INR
A
Retailer 2
-
£1,565 GBP
$2,100 USD
View
A
Retailer 3
-
£1,610 GBP
$2,160 USD
View
A
Retailer 4
-
£1,744 GBP
$2,340 USD
View
B+
Retailer 5
-
£1,748 GBP
$2,346 USD
View
Final sale: no returns
B+
Retailer 6
-
£1,757 GBP
A$3,628 AUD
View
A
Retailer 7
-
£1,873 GBP
View
Retailer 8
-
£1,894 GBP
$2,542 USD
View
Price last confirmed 25 days ago
Retailer 9
-
£1,894 GBP
$2,542 USD
View
Price last confirmed 8 days ago
A
Retailer 10
-
£1,908 GBP
$2,560 USD
View
Retailer 11
-
£1,981 GBP
$2,659 USD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
£1,999 GBP
$2,683 USD
View
Retailer 13
-
£2,186 GBP
$2,933 USD
View
Price last confirmed 57 days ago
Retailer 14
-
£2,186 GBP
$2,933 USD
View
Price last confirmed 24 days ago
B+
Retailer 15
-
£2,192 GBP
€2,801 EUR
View
B
Retailer 16
-
£3,319 GBP
View
Most Expensive
NZ Jewellers
76569a91-5f6f-45de-960a-7b3681aabb8a · Sep 30
£3,960 GBP
$5,314 USD
View
Price last confirmed 33 days ago
16 more retailers have this diamond
Prices start from £1,407 GBPSave up to £1,912 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
1.20ct Marquise
£1,407 GBP