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Marquise|Natural|GIA

0.80ct K SI1 Marquise Natural Diamond

K/SI1 • GIA 6551672114

Certificate GIA 6551672114

Diamond specifications and retailer prices

From £558 GBP
As of November 5, 2026
Save £490 GBP (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,755 GBP at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included) and certified by GIA 6551672114. Listed at 6 retailers as of November 2, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551672114
Dimensions8.82 × 4.65 × 3.14 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
8.82 mm4.65 mm0.80 ctK / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551672114
Side View
Table 63.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 67.6%

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: Nov 5
Current: £558 GBP|Low: £510 GBP|High: £1,106 GBP|Avg: £825 GBP|-6.5%
Retailer 1
Retailer 2
Retailer 3
November 5, 2026
Retailer 1£558 GBP
Retailer 3£858 GBP
Retailer 2£1,048 GBP

17 data points across 3 retailers

6 retailers£558 GBP to £1,048 GBP

B+
Cheapest Retailer
-
£558 GBP
Retailer 2
-
£559 GBP
View
Price last confirmed 27 days ago
Retailer 3
-
£608 GBP
View
Price last confirmed 36 days ago
B+
Retailer 4
-
£858 GBP
View
B
Retailer 5
-
£1,048 GBP
View
Most Expensive
NZ Jewellers
7b50f682-9b83-43cb-a62e-bd6b99ab6eb7 · Oct 11
£1,755 GBP
$2,362 USD
View
Price last confirmed 26 days ago
5 more retailers have this diamond
Prices start from £558 GBPSave up to £490 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+
0.80ct Marquise
£558 GBP