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Marquise|Natural|GIA

0.80ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1555492596

Certificate GIA 1555492596

Diamond specifications and retailer prices

From £1,388 GBP
A$2,867 AUD
As of November 1, 2026
Save £625 GBP (31%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,013 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555492596. Listed at 4 retailers as of November 1, 2026, with prices from £1,388 to £2,013, a £625 spread on the same certified stone. 77 Diamonds lists it at £2,013. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.80
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.41°
Pavilion angle42.37°
OriginNatural
Grading LabGIA
CertificateGIA 1555492596
Dimensions9.05 × 4.89 × 3.17 mm
L/W Ratio1.85
Culet sizeNone
Top View
9.05 mm4.89 mm0.80 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555492596
Side View
Table 60.0%Crown 35.41°Girdle: MED-VTKPavilion 42.37°Culet: NoneDepth 64.9%

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: Nov 1
Current: £2,013 GBP|Low: £725 GBP|High: £2,030 GBP|Avg: £1,392 GBP|-0.8%
77 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 12£725 GBP
Retailer 9£1,044 GBP
Retailer 8£1,097 GBP
Retailer 11£1,106 GBP
Retailer 7£1,114 GBP
Retailer 4£1,411 GBP
Retailer 10£1,424 GBP
Retailer 13£1,512 GBP
Retailer 6£1,528 GBP
Retailer 3£1,801 GBP
Retailer 5£1,830 GBP
Retailer 2£1,877 GBP
77 Diamonds£2,013 GBP

20 data points across 13 retailers

4 retailers£1,388 GBP to £2,013 GBP

A
Cheapest Retailer
-
£1,388 GBP
A$2,867 AUD
B+
Retailer 2
-
£1,411 GBP
$1,893 USD
View
B
Retailer 3
-
£1,877 GBP
CA$3,499 CAD
View
Most Expensive
B
77 Diamonds
MQMBRVFUTD28 · Nov 2
£2,013 GBP
View
3 more retailers have this diamond
Prices start from £1,388 GBPSave up to £625 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
£1,388 GBP