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Marquise|Natural|GIA

0.85ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6315197958

Shape and cutting style on the report: Marquise brilliant

Certificate GIA 6315197958

Diamond specifications and retailer prices

From £1,231 GBP
$1,649 USD
As of November 1, 2026
Save £2,062 GBP (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,293 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.85ct natural marquise diamond

This 0.85ct natural marquise sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6315197958. Listed at 13 retailers as of October 30, 2026, with prices from £1,231 to £3,293, a £2,062 spread on the same certified stone. NZ Jewellers lists it at £3,293. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6315197958
Dimensions9.86 × 5.51 × 2.67 mm
L/W Ratio1.79
Top View
9.86 mm5.51 mm0.85 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6315197958
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 48.4%

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: £3,293 GBP|Low: £1,243 GBP|High: £3,293 GBP|Avg: £1,756 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 8£1,243 GBP
Retailer 4£1,350 GBP
Retailer 11£1,350 GBP
Retailer 12£1,392 GBP
Retailer 10£1,412 GBP
Retailer 5£1,513 GBP
Retailer 3£1,558 GBP
Retailer 9£1,762 GBP
Retailer 7£1,844 GBP
Retailer 6£2,011 GBP
Retailer 2£2,366 GBP
NZ Jewellers£3,293 GBP

44 data points across 12 retailers

13 retailers£1,231 GBP to £3,293 GBP

A
Cheapest Retailer
-
£1,231 GBP
$1,649 USD
A
Retailer 2
-
£1,243 GBP
$1,665 USD
View
A
Retailer 3
-
£1,350 GBP
$1,809 USD
View
A
Retailer 4
-
£1,350 GBP
$1,809 USD
View
A
Retailer 5
-
£1,392 GBP
$1,865 USD
View
A
Retailer 6
-
£1,412 GBP
$1,892 USD
View
A
Retailer 7
-
£1,513 GBP
View
A
Retailer 8
-
£1,558 GBP
$2,087 USD
View
Retailer 9
-
£1,762 GBP
A$3,632 AUD
View
Price last confirmed 27 days ago
B+
Retailer 10
-
£1,844 GBP
€2,353 EUR
View
B+
Retailer 11
-
£2,011 GBP
ZAR 43,527 ZAR
View
B+
Retailer 12
-
£2,366 GBP
View
Most Expensive
B
NZ Jewellers
a7e9c3d9-a65e-4b59-bc9d-720bb12a0712 · Oct 30
£3,293 GBP
$4,412 USD
View
12 more retailers have this diamond
Prices start from £1,231 GBPSave up to £2,062 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
£1,231 GBP