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Marquise|Natural|IGI

1.50ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 794652736

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 794652736

Diamond specifications and retailer prices

From £1,795 GBP
As of November 5, 2026
Save £2,396 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,191 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 794652736. Listed at 16 retailers as of November 5, 2026, with prices from £1,795 to £4,191, a £2,396 spread on the same certified stone. NZ Jewellers lists it at £4,191. 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

1.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.6°
Pavilion angle34.9°
OriginNatural
Grading LabIGI
CertificateIGI 794652736
Dimensions11.06 × 5.98 × 3.61 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
Top View
11.06 mm5.98 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 794652736
Side View
Table 57.0%Crown 38.6°Girdle: STK-THKPavilion 34.9°Culet: NoneDepth 60.4%

Caratlytics Score

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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 5
Current: £4,191 GBP|Low: £1,795 GBP|High: £4,191 GBP|Avg: £2,344 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 4£1,795 GBP
Retailer 15£1,947 GBP
Retailer 16£1,976 GBP
Retailer 3£2,004 GBP
Retailer 14£2,004 GBP
Retailer 13£2,081 GBP
Retailer 7£2,110 GBP
Retailer 5£2,112 GBP
Retailer 12£2,126 GBP
Retailer 9£2,146 GBP
Retailer 6£2,313 GBP
Retailer 8£2,324 GBP
Retailer 2£2,338 GBP
Retailer 10£2,447 GBP
Retailer 11£3,502 GBP
NZ Jewellers£4,191 GBP

44 data points across 16 retailers

16 retailers£1,795 GBP to £4,191 GBP

A
Cheapest Retailer
-
£1,795 GBP
B+
Retailer 2
-
£1,947 GBP
View
B+
Retailer 3
-
£1,976 GBP
View
B+
Retailer 4
-
£2,004 GBP
View
Retailer 5
-
£2,004 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£2,081 GBP
View
B+
Retailer 7
-
£2,110 GBP
View
B+
Retailer 8
-
£2,112 GBP
View
B+
Retailer 9
-
£2,126 GBP
View
A
Retailer 10
-
£2,146 GBP
View
Retailer 11
-
£2,237 GBP
View
Price last confirmed 62 days ago
B+
Retailer 12
-
£2,313 GBP
View
A
Retailer 13
-
£2,338 GBP
View
B+
Retailer 14
-
£2,447 GBP
View
B+
Retailer 15
-
£3,502 GBP
View
Most Expensive
B
NZ Jewellers
bdb78874-8953-4380-b1bc-d46fbf9fb832 · Nov 5
£4,191 GBP
$5,609 USD
View
15 more retailers have this diamond
Prices start from £1,795 GBPSave up to £2,396 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
1.50ct Marquise
£1,795 GBP