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Marquise|Natural|IGI

0.78ct H SI1 Marquise Natural Diamond

VG • H/SI1 • IGI 813687959

Certificate IGI 813687959

Diamond specifications and retailer prices

From £469 GBP
As of November 6, 2026
Save £430 GBP (48%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £899 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.78ct natural marquise diamond

This 0.78ct natural marquise sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 813687959. Listed at 3 retailers as of November 6, 2026, with prices from £469 to £899, a £430 spread on the same certified stone. 77 Diamonds lists it at £899. 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

0.78
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabIGI
CertificateIGI 813687959
Dimensions8.90 × 4.12 × 2.70 mm
L/W Ratio2.16
Top View
8.90 mm4.12 mm0.78 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 813687959
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCuletDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £899 GBP|Low: £469 GBP|High: £963 GBP|Avg: £686 GBP|-6.7%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£469 GBP
Retailer 3£622 GBP
77 Diamonds£899 GBP

26 data points across 3 retailers

3 retailers£469 GBP to £899 GBP

A
Cheapest Retailer
-
£469 GBP
Retailer 2
-
£622 GBP
View
Price last confirmed 9 days ago
Most Expensive
B+
77 Diamonds
MQCPQYXZCCGV · Nov 6
£899 GBP
View
2 more retailers have this diamond
Prices start from £469 GBPSave up to £430 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
0.78ct Marquise
£469 GBP