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Marquise|Natural|GIA

0.73ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 7558306038

Certificate GIA 7558306038

Diamond specifications and retailer prices

From £415 GBP
As of November 5, 2026
Save £366 GBP (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £780 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.73ct natural marquise diamond

This 0.73ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558306038. Listed at 9 retailers as of November 5, 2026, with prices from £415 to £780, a £366 spread on the same certified stone. Frank Darling lists it at £780. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.73
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.42°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7558306038
Dimensions8.90 × 4.65 × 2.98 mm
L/W Ratio1.91
Culet sizeNone
Top View
8.90 mm4.65 mm0.73 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558306038
Side View
Table 60.0%Crown 39.42°Girdle: MED-VTKPavilion 40.6°Culet: NoneDepth 64.2%

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 5
Current: £780 GBP|Low: £357 GBP|High: £880 GBP|Avg: £624 GBP|-8.3%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£357 GBP
Retailer 4£415 GBP
Retailer 8£465 GBP
Retailer 7£557 GBP
Retailer 10£574 GBP
Retailer 5£606 GBP
Retailer 2£649 GBP
Retailer 6£652 GBP
Retailer 9£706 GBP
Frank Darling£780 GBP
Retailer 11£880 GBP

27 data points across 11 retailers

9 retailers£415 GBP to £780 GBP

A
Cheapest Retailer
-
£415 GBP
A
Retailer 2
-
£465 GBP
View
A
Retailer 3
-
£557 GBP
View
A
Retailer 4
-
£606 GBP
View
B+
Retailer 5
-
£649 GBP
View
B+
Retailer 6
-
£652 GBP
View
B+
Retailer 7
-
£669 GBP
View
B+
Retailer 8
-
£706 GBP
View
Most Expensive
B+
Frank Darling
2648695HK · Nov 6
£780 GBP
$1,050 USD
View
8 more retailers have this diamond
Prices start from £415 GBPSave up to £366 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
0.73ct Marquise
£415 GBP