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Marquise|Natural|IGI

0.73ct D SI1 Marquise Natural Diamond

GD • D/SI1 • IGI 823660730

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 823660730

Diamond specifications and retailer prices

From £921 GBP
$1,234 USD
As of October 29, 2026
Save £1,325 GBP (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,246 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.73ct natural marquise diamond

This 0.73ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI 823660730. Listed at 9 retailers as of October 29, 2026, with prices from £921 to £2,246, a £1,325 spread on the same certified stone. NZ Jewellers lists it at £2,246. 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

0.73
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 823660730
Dimensions8.78 × 4.71 × 3.01 mm
L/W Ratio1.86
Girdle conditionFaceted
Top View
8.78 mm4.71 mm0.73 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 823660730
Side View
Table 62.0%Crown 33.2°Girdle: THK-ETKPavilion 40.8°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,246 GBP|Low: £921 GBP|High: £2,298 GBP|Avg: £1,264 GBP|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7£921 GBP
Retailer 8£950 GBP
Retailer 5£956 GBP
Retailer 9£1,003 GBP
Retailer 6£1,004 GBP
Retailer 3£1,165 GBP
Retailer 2£1,250 GBP
Retailer 4£1,689 GBP
NZ Jewellers£2,246 GBP

43 data points across 9 retailers

9 retailers£921 GBP to £2,246 GBP

B+
Cheapest Retailer
-
£921 GBP
$1,234 USD
B+
Retailer 2
-
£950 GBP
$1,273 USD
View
B+
Retailer 3
-
£956 GBP
$1,281 USD
View
B+
Retailer 4
-
£1,003 GBP
$1,344 USD
View
B+
Retailer 5
-
£1,004 GBP
$1,345 USD
View
B
Retailer 6
-
£1,165 GBP
View
B
Retailer 7
-
£1,250 GBP
€1,595 EUR
View
B
Retailer 8
-
£1,689 GBP
View
Most Expensive
C
NZ Jewellers
4a942ac5-7484-4f5e-bb0c-3b9ba325f973 · Oct 30
£2,246 GBP
$3,009 USD
View
8 more retailers have this diamond
Prices start from £921 GBPSave up to £1,325 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.

B+
0.73ct Marquise
£921 GBP