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Marquise|Natural|GIA

0.80ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 1242009944

Certificate GIA 1242009944

Diamond specifications and retailer prices

From £1,351 GBP
$1,813 USD
As of November 2, 2026
Save £369 GBP (21%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,720 GBP at Yorxs · As of October 26, 2026
View at Yorxs

About this 0.8ct natural marquise diamond

This 0.8ct 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 stated by the retailer rather than the lab and certified by GIA 1242009944. Listed at 7 retailers as of October 26, 2026, with prices from £1,351 to £1,720, a £369 spread on the same certified stone. Yorxs lists it at £1,720. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.61°
Pavilion angle37.48°
OriginNatural
Grading LabGIA
CertificateGIA 1242009944
Dimensions9.36 × 4.73 × 2.83 mm
L/W Ratio1.98
Culet sizeNone
Top View
9.36 mm4.73 mm0.80 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1242009944
Side View
Table 62.0%Crown 38.61°Girdle: STK-ETKPavilion 37.48°Culet: NoneDepth 59.9%

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 2
Current: £1,718 GBP|Low: £692 GBP|High: £1,769 GBP|Avg: £1,338 GBP|+65.5%
Retailer 1
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Retailer 3
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Retailer 5
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Retailer 7
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Retailer 11
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Retailer 15
Yorxs
October 27, 2026
Retailer 4£692 GBP
Retailer 14£983 GBP
Retailer 12£1,036 GBP
Retailer 3£1,043 GBP
Retailer 15£1,070 GBP
Retailer 6£1,351 GBP
Retailer 2£1,360 GBP
Retailer 9£1,446 GBP
Retailer 11£1,446 GBP
Retailer 13£1,468 GBP
Retailer 10£1,490 GBP
Retailer 8£1,556 GBP
Retailer 1£1,718 GBP
Yorxs£1,720 GBP
Retailer 5£1,734 GBP
Retailer 7£1,769 GBP

4 data points across 16 retailers

7 retailers£1,351 GBP to £1,720 GBP

B+
Cheapest Retailer
-
£1,351 GBP
$1,813 USD
Retailer 2
-
£1,446 GBP
$1,940 USD
View
Price last confirmed 7 days ago
Retailer 3
-
£1,446 GBP
$1,940 USD
View
Price last confirmed 7 days ago
Retailer 4
-
£1,490 GBP
$2,000 USD
View
Price last confirmed 7 days ago
B
Retailer 5
-
£1,556 GBP
CA$2,901 CAD
View
B
Retailer 6
-
£1,718 GBP
View
Most Expensive
B
Yorxs
622108561 · Oct 26
£1,720 GBP
€2,198 EUR
View
6 more retailers have this diamond
Prices start from £1,351 GBPSave up to £369 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
£1,351 GBP