CaratHunter
Plans
Marquise|Natural|IGI

0.51ct H VVS1 Marquise Natural Diamond

EX • H/VVS1 • IGI 840601863

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 840601863

Diamond specifications and retailer prices

From £478 GBP
$640 USD
As of November 2, 2026
Save £1,146 GBP (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,624 GBP at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 840601863. Listed at 16 retailers as of October 30, 2026, with prices from £478 to £1,624, a £1,146 spread on the same certified stone. NZ Jewellers lists it at £1,624. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 840601863
Dimensions8.07 × 4.14 × 2.61 mm
L/W Ratio1.95
Girdle conditionFaceted
Top View
8.07 mm4.14 mm0.51 ctH / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 840601863
Side View
Table 60.0%Crown 38.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 63.0%

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: £1,624 GBP|Low: £478 GBP|High: £1,655 GBP|Avg: £734 GBP|-1.9%
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 2, 2026
Retailer 6£478 GBP
Retailer 12£518 GBP
Retailer 8£528 GBP
Retailer 16£537 GBP
Retailer 7£549 GBP
Retailer 3£598 GBP
Retailer 14£610 GBP
Retailer 11£617 GBP
Retailer 2£636 GBP
Retailer 10£653 GBP
Retailer 9£693 GBP
Retailer 15£743 GBP
Retailer 5£799 GBP
Retailer 4£1,035 GBP
Retailer 13£1,196 GBP
NZ Jewellers£1,624 GBP

30 data points across 16 retailers

16 retailers£478 GBP to £1,624 GBP

A
Cheapest Retailer
-
£478 GBP
$640 USD
Final sale: no returns
A
Retailer 2
-
£518 GBP
$694 USD
View
A
Retailer 3
-
£528 GBP
$707 USD
View
A
Retailer 4
-
£537 GBP
$720 USD
View
A
Retailer 5
-
£549 GBP
$735 USD
View
A
Retailer 6
-
£598 GBP
$801 USD
View
A
Retailer 7
-
£610 GBP
$818 USD
View
A
Retailer 8
-
£617 GBP
$826 USD
View
A
Retailer 9
-
£636 GBP
View
B+
Retailer 10
-
£653 GBP
View
B+
Retailer 11
-
£693 GBP
€884 EUR
View
B+
Retailer 12
-
£743 GBP
$996 USD
View
B+
Retailer 13
-
£799 GBP
ZAR 17,302 ZAR
View
B
Retailer 14
-
£1,035 GBP
View
B
Retailer 15
-
£1,196 GBP
View
Most Expensive
B
NZ Jewellers
035dc4e3-f4a6-4dba-9a1b-7d64050a81bd · Oct 30
£1,624 GBP
$2,176 USD
View
15 more retailers have this diamond
Prices start from £478 GBPSave up to £1,146 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
£478 GBP