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Marquise|Natural|IGI

0.51ct K IF Marquise Natural Diamond

VG • K/IF • IGI 741551063

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 741551063

Diamond specifications and retailer prices

From £284 GBP
As of November 1, 2026
Save £1,160 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,443 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 741551063. Listed at 13 retailers as of November 1, 2026, with prices from £284 to £1,443, a £1,160 spread on the same certified stone. NZ Jewellers lists it at £1,443. 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

0.51
Carat
K
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 741551063
Dimensions8.24 × 4.15 × 2.60 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizePointed
Top View
8.24 mm4.15 mm0.51 ctK / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 741551063
Side View
Table 63.0%Crown 34.6°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 62.7%

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 1
Current: £1,443 GBP|Low: £329 GBP|High: £1,443 GBP|Avg: £557 GBP|+19.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£330 GBP
Retailer 3£351 GBP
Retailer 11£377 GBP
Retailer 12£406 GBP
Retailer 4£407 GBP
Retailer 6£436 GBP
Retailer 5£505 GBP
Retailer 10£527 GBP
Retailer 2£569 GBP
Retailer 8£583 GBP
Retailer 9£868 GBP
NZ Jewellers£1,443 GBP

27 data points across 12 retailers

13 retailers£284 GBP to £1,443 GBP

A
Cheapest Retailer
-
£284 GBP
A
Retailer 2
-
£330 GBP
View
A
Retailer 3
-
£351 GBP
View
A
Retailer 4
-
£377 GBP
View
A
Retailer 5
-
£406 GBP
View
Retailer 6
-
£407 GBP
View
Price last confirmed 9 days ago
A
Retailer 7
-
£436 GBP
View
A
Retailer 8
-
£505 GBP
View
B+
Retailer 9
-
£527 GBP
View
B+
Retailer 10
-
£569 GBP
View
B+
Retailer 11
-
£583 GBP
View
B
Retailer 12
-
£868 GBP
View
Most Expensive
C
NZ Jewellers
ea7d894b-f415-4d31-afa9-de04fd0660f6 · Nov 3
£1,443 GBP
$1,932 USD
View
12 more retailers have this diamond
Prices start from £284 GBPSave up to £1,160 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
0.51ct Marquise
£284 GBP