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Marquise|Natural|GIA

0.80ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 6565217403

Certificate GIA 6565217403

Diamond specifications and retailer prices

From £503 GBP
SGD 912 SGD
As of October 31, 2026
Save £396 GBP (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £899 GBP at Frank Darling · As of November 2, 2026
View at Frank Darling

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6565217403. Listed at 10 retailers as of October 31, 2026, with prices from £503 to £899, a £396 spread on the same certified stone. Frank Darling 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

0.80
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.12°
Pavilion angle41.12°
OriginNatural
Grading LabGIA
CertificateGIA 6565217403
Dimensions8.87 × 4.78 × 3.12 mm
L/W Ratio1.86
Culet sizeNone
Top View
8.87 mm4.78 mm0.80 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565217403
Side View
Table 61.0%Crown 40.12°Girdle: MED-VTKPavilion 41.12°Culet: NoneDepth 65.3%

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: Oct 31
Current: £899 GBP|Low: £503 GBP|High: £1,121 GBP|Avg: £744 GBP|-8.2%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£503 GBP
Retailer 3£540 GBP
Retailer 4£585 GBP
Retailer 9£588 GBP
Retailer 5£601 GBP
Retailer 8£681 GBP
Retailer 2£790 GBP
Retailer 6£823 GBP
Retailer 10£894 GBP
Frank Darling£899 GBP

36 data points across 10 retailers

10 retailers£503 GBP to £899 GBP

A
Cheapest Retailer
-
£503 GBP
SGD 912 SGD
A
Retailer 2
-
£540 GBP
$725 USD
View
A
Retailer 3
-
£585 GBP
$785 USD
View
A
Retailer 4
-
£588 GBP
SGD 1,067 SGD
View
A
Retailer 5
-
£601 GBP
$807 USD
View
A
Retailer 6
-
£681 GBP
$914 USD
View
A
Retailer 7
-
£790 GBP
€1,010 EUR
View
A
Retailer 8
-
£823 GBP
$1,105 USD
View
A
Retailer 9
-
£894 GBP
$1,200 USD
View
Most Expensive
A
Frank Darling
2683874HK · Nov 2
£899 GBP
$1,206 USD
View
9 more retailers have this diamond
Prices start from £503 GBPSave up to £396 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
0.80ct Marquise
£503 GBP