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Marquise|Natural|GIA

0.85ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6561049847

Certificate GIA 6561049847

Diamond specifications and retailer prices

From £537 GBP
SGD 974 SGD
As of October 31, 2026
Save £407 GBP (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £960 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 0.85ct natural marquise diamond

This 0.85ct natural marquise sits in the just-under-one-carat band, graded J 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 6561049847. Listed at 9 retailers as of October 31, 2026, with a 76% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.85
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.91°
Pavilion angle41.89°
OriginNatural
Grading LabGIA
CertificateGIA 6561049847
Dimensions10.20 × 4.81 × 3.03 mm
L/W Ratio2.12
Culet sizeNone
Top View
10.20 mm4.81 mm0.85 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561049847
Side View
Table 58.0%Crown 37.91°Girdle: MED-THKPavilion 41.89°Culet: NoneDepth 62.9%

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: Oct 31
Current: £851 GBP|Low: £493 GBP|High: £1,107 GBP|Avg: £771 GBP|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 28, 2026
Retailer 9£493 GBP
Retailer 5£537 GBP
Retailer 2£584 GBP
Retailer 7£636 GBP
Retailer 3£648 GBP
Retailer 6£733 GBP
Retailer 1£851 GBP
Retailer 4£890 GBP
Retailer 8£944 GBP
Wholesale Diamonds Direct£960 GBP

27 data points across 10 retailers

9 retailers£537 GBP to £944 GBP

A
Cheapest Retailer
-
£537 GBP
SGD 974 SGD
A
Retailer 2
-
£584 GBP
$783 USD
View
A
Retailer 3
-
£636 GBP
SGD 1,153 SGD
View
A
Retailer 4
-
£648 GBP
$870 USD
View
A
Retailer 5
-
£733 GBP
$983 USD
View
A
Retailer 6
-
£851 GBP
€1,088 EUR
View
A
Retailer 7
-
£890 GBP
$1,194 USD
View
B+
Retailer 8
-
£944 GBP
$1,267 USD
View
Most Expensive
Wholesale Diamonds Direct
302835694 · Oct 27
£960 GBP
$1,289 USD
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from £537 GBPSave up to £407 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
0.85ct Marquise
£537 GBP