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Marquise|Natural|GIA

1.29ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 2556042660

Certificate GIA 2556042660

Diamond specifications and retailer prices

From £2,690 GBP
As of November 6, 2026
Save £2,992 GBP (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £5,683 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.29ct natural marquise diamond

This 1.29ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556042660. Listed at 14 retailers as of November 4, 2026, with prices from £2,690 to £5,683, a £2,992 spread on the same certified stone. MOH London lists it at £5,683. 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

1.29
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.9°
Pavilion angle40.74°
OriginNatural
Grading LabGIA
CertificateGIA 2556042660
Dimensions10.62 × 5.55 × 3.64 mm
L/W Ratio1.91
Top View
10.62 mm5.55 mm1.29 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556042660
Side View
Table 57.0%Crown 40.9°Girdle: STK-VTKPavilion 40.74°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £5,683 GBP|Low: £1,877 GBP|High: £5,728 GBP|Avg: £3,438 GBP|-0.8%
MOH London
Retailer 2
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Retailer 22
November 6, 2026
Retailer 10£1,877 GBP
Retailer 15£2,583 GBP
Retailer 12£2,587 GBP
Retailer 3£2,690 GBP
Retailer 14£2,779 GBP
Retailer 7£2,812 GBP
Retailer 22£3,019 GBP
Retailer 9£3,033 GBP
Retailer 18£3,089 GBP
Retailer 19£3,207 GBP
Retailer 13£3,326 GBP
Retailer 17£3,535 GBP
Retailer 21£3,564 GBP
Retailer 4£3,683 GBP
Retailer 6£3,683 GBP
Retailer 2£3,801 GBP
Retailer 5£3,803 GBP
Retailer 16£4,025 GBP
Retailer 11£4,090 GBP
Retailer 8£4,227 GBP
Retailer 20£5,226 GBP
MOH London£5,683 GBP

9 data points across 22 retailers

14 retailers£2,690 GBP to £5,683 GBP

B+
Cheapest Retailer
-
£2,690 GBP
B+
Retailer 2
-
£3,019 GBP
View
B+
Retailer 3
-
£3,089 GBP
View
B+
Retailer 4
-
£3,207 GBP
View
B
Retailer 5
-
£3,326 GBP
View
B
Retailer 6
-
£3,535 GBP
View
B
Retailer 7
-
£3,564 GBP
View
B
Retailer 8
-
£3,683 GBP
View
B
Retailer 9
-
£3,683 GBP
View
B
Retailer 10
-
£3,801 GBP
View
B
Retailer 11
-
£3,803 GBP
View
B
Retailer 12
-
£4,025 GBP
View
B
Retailer 13
-
£5,226 GBP
View
Most Expensive
C
MOH London
515482345 · Nov 4
£5,683 GBP
View
13 more retailers have this diamond
Prices start from £2,690 GBPSave up to £2,992 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+
1.29ct Marquise
£2,690 GBP