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Marquise|Natural|AGS

0.77ct J SI1 Marquise Natural Diamond

GD • J/SI1 • AGS 104057043027

Certificate AGS 104057043027

Diamond specifications and retailer prices

From £854 GBP
$1,144 USD
As of November 1, 2026
Save £518 GBP (38%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,371 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 0.77ct natural marquise diamond

This 0.77ct natural marquise sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by AGS 104057043027. Listed at 3 retailers as of November 1, 2026, with prices from £854 to £1,371, a £518 spread on the same certified stone. Yorxs lists it at £1,371. 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

0.77
Carat
J
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabAGS
CertificateAGS 104057043027
Dimensions8.14 × 4.80 × 3.42 mm
L/W Ratio1.70
Top View
8.14 mm4.80 mm0.77 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceMedium
CertificateAGS 104057043027
Side View
Table 49.1%CrownGirdlePavilionCuletDepth 71.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £891 GBP|Low: £854 GBP|High: £1,373 GBP|Avg: £1,048 GBP
Retailer 1
Retailer 2
Yorxs
November 2, 2026
Retailer 2£854 GBP
Retailer 1£891 GBP
Yorxs£1,371 GBP

16 data points across 3 retailers

3 retailers£854 GBP to £1,371 GBP

B
Cheapest Retailer
-
£854 GBP
$1,144 USD
B
Retailer 2
-
£891 GBP
$1,194 USD
View
Most Expensive
C
Yorxs
2BE0C96C5 · Nov 2
£1,371 GBP
€1,750 EUR
View
2 more retailers have this diamond
Prices start from £854 GBPSave up to £518 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
0.77ct Marquise
£854 GBP