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Marquise|Natural|GIA

0.80ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 1563217511

Certificate GIA 1563217511

Diamond specifications and retailer prices

From £726 GBP
$973 USD
As of October 31, 2026
Save £576 GBP (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,302 GBP at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1563217511. Listed at 13 retailers as of October 31, 2026, with prices from £726 to £1,302, a £576 spread on the same certified stone. Helzberg Diamonds lists it at £1,302. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.55°
Pavilion angle37.53°
OriginNatural
Grading LabGIA
CertificateGIA 1563217511
Dimensions9.25 × 4.91 × 2.86 mm
L/W Ratio1.88
Culet sizeNone
Top View
9.25 mm4.91 mm0.80 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1563217511
Side View
Table 60.0%Crown 37.55°Girdle: STK-VTKPavilion 37.53°Culet: NoneDepth 58.2%

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: £1,302 GBP|Low: £726 GBP|High: £1,361 GBP|Avg: £924 GBP|-4.3%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10£726 GBP
Retailer 3£731 GBP
Retailer 9£742 GBP
Retailer 8£761 GBP
Retailer 12£763 GBP
Retailer 4£791 GBP
Retailer 2£843 GBP
Retailer 11£899 GBP
Retailer 6£911 GBP
Retailer 7£1,053 GBP
Retailer 5£1,093 GBP
Retailer 13£1,178 GBP
Helzberg Diamonds£1,302 GBP

27 data points across 13 retailers

13 retailers£726 GBP to £1,302 GBP

A
Cheapest Retailer
-
£726 GBP
$973 USD
A
Retailer 2
-
£731 GBP
$980 USD
View
A
Retailer 3
-
£742 GBP
SGD 1,343 SGD
View
A
Retailer 4
-
£761 GBP
$1,020 USD
View
A
Retailer 5
-
£763 GBP
$1,023 USD
View
A
Retailer 6
-
£791 GBP
SGD 1,432 SGD
View
A
Retailer 7
-
£843 GBP
View
A
Retailer 8
-
£899 GBP
$1,205 USD
View
A
Retailer 9
-
£911 GBP
$1,221 USD
View
A
Retailer 10
-
£1,053 GBP
€1,344 EUR
View
B+
Retailer 11
-
£1,093 GBP
$1,465 USD
View
B+
Retailer 12
-
£1,178 GBP
$1,579 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRHLMJIHNLHH · Nov 2
£1,302 GBP
$1,745 USD
View
12 more retailers have this diamond
Prices start from £726 GBPSave up to £576 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
£726 GBP