CaratHunter
Plans
Marquise|Natural|GIA

1.06ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6541731721

Certificate GIA 6541731721

Diamond specifications and retailer prices

From £1,264 GBP
As of November 6, 2026
Save £1,806 GBP (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,070 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.06ct natural marquise diamond

This 1.06ct natural marquise sits in the classic 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 6541731721. Listed at 11 retailers as of November 4, 2026, with prices from £1,264 to £3,070, a £1,806 spread on the same certified stone. MOH London lists it at £3,070. 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

1.06
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.73°
Pavilion angle41.23°
OriginNatural
Grading LabGIA
CertificateGIA 6541731721
Dimensions10.13 × 5.29 × 3.41 mm
L/W Ratio1.91
Top View
10.13 mm5.29 mm1.06 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541731721
Side View
Table 58.0%Crown 39.73°Girdle: STK-THKPavilion 41.23°Culet: NoneDepth 64.5%

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 6
Current: £3,070 GBP|Low: £773 GBP|High: £3,070 GBP|Avg: £1,355 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 5, 2026
Retailer 6£773 GBP
Retailer 13£891 GBP
Retailer 3£1,044 GBP
Retailer 5£1,119 GBP
Retailer 7£1,264 GBP
Retailer 14£1,407 GBP
Retailer 4£1,535 GBP
Retailer 11£1,535 GBP
Retailer 10£1,606 GBP
Retailer 15£1,711 GBP
Retailer 2£1,736 GBP
Retailer 9£1,910 GBP
Retailer 8£2,144 GBP
Retailer 12£2,185 GBP
MOH London£3,070 GBP

11 data points across 15 retailers

11 retailers£1,264 GBP to £3,070 GBP

Retailer 1
-
£1,044 GBP
Price last confirmed 23 days ago
Retailer 2
-
£1,119 GBP
View
Price last confirmed 22 days ago
A
Retailer 3
-
£1,264 GBP
View
B+
Retailer 4
-
£1,535 GBP
View
B+
Retailer 5
-
£1,606 GBP
View
Retailer 6
-
£1,711 GBP
View
Price last confirmed 24 days ago
B+
Retailer 7
-
£1,736 GBP
View
B+
Retailer 8
-
£1,910 GBP
View
B
Retailer 9
-
£2,144 GBP
View
B
Retailer 10
-
£2,185 GBP
View
Most Expensive
B
MOH London
A35BCB829 · Nov 4
£3,070 GBP
View
10 more retailers have this diamond
Prices start from £1,264 GBPSave up to £1,806 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
1.06ct Marquise
£1,264 GBP