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Marquise|Natural|IGI

1.20ct K IF Marquise Natural Diamond

VG • K/IF • IGI 737518450

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 737518450

Diamond specifications and retailer prices

From £1,573 GBP
As of November 2, 2026
Save £2,099 GBP (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,673 GBP at NZ Jewellers · As of November 3, 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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 737518450. Listed at 8 retailers as of November 2, 2026, with prices from £1,573 to £3,673, a £2,099 spread on the same certified stone. NZ Jewellers lists it at £3,673. 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
K
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle38.4°
OriginNatural
Grading LabIGI
CertificateIGI 737518450
Dimensions10.95 × 5.61 × 3.37 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Top View
10.95 mm5.61 mm1.20 ctK / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 737518450
Side View
Table 55.0%Crown 34.5°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £3,673 GBP|Low: £1,573 GBP|High: £3,712 GBP|Avg: £2,205 GBP|-1.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4£1,573 GBP
Retailer 2£1,701 GBP
Retailer 8£1,757 GBP
Retailer 7£1,823 GBP
Retailer 3£1,827 GBP
Retailer 6£1,838 GBP
Retailer 5£3,081 GBP
NZ Jewellers£3,673 GBP

40 data points across 8 retailers

8 retailers£1,573 GBP to £3,673 GBP

A
Cheapest Retailer
-
£1,573 GBP
A
Retailer 2
-
£1,701 GBP
View
A
Retailer 3
-
£1,757 GBP
View
A
Retailer 4
-
£1,823 GBP
View
A
Retailer 5
-
£1,827 GBP
View
A
Retailer 6
-
£1,838 GBP
View
Retailer 7
-
£3,081 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
NZ Jewellers
3d3e30f2-b65a-43bf-bbf1-f4acfef0cbe2 · Nov 3
£3,673 GBP
$4,916 USD
View
7 more retailers have this diamond
Prices start from £1,573 GBPSave up to £2,099 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
£1,573 GBP