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Marquise|Natural|GIA

1.29ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 1555314226

Certificate GIA 1555314226

Diamond specifications and retailer prices

From £1,712 GBP
As of November 5, 2026
Save £1,710 GBP (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,422 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 I 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 1555314226. Listed at 11 retailers as of November 5, 2026, with prices from £1,712 to £3,422, a £1,710 spread on the same certified stone. Wholesale Diamonds Direct lists it at £3,422. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.74°
Pavilion angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 1555314226
Dimensions10.63 × 5.63 × 3.69 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.63 mm5.63 mm1.29 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555314226
Side View
Table 63.0%Crown 40.74°Girdle: VTN-VTKPavilion 42.2°Culet: NoneDepth 65.5%

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 5
Current: £2,061 GBP|Low: £1,703 GBP|High: £4,018 GBP|Avg: £2,630 GBP|-14.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 4£1,712 GBP
Retailer 1£2,061 GBP
Retailer 5£2,096 GBP
Retailer 9£2,282 GBP
Retailer 2£2,430 GBP
Retailer 7£2,448 GBP
Retailer 3£2,519 GBP
Retailer 8£2,522 GBP
Retailer 6£3,195 GBP
Wholesale Diamonds Direct£3,422 GBP

36 data points across 10 retailers

11 retailers£1,712 GBP to £3,422 GBP

A
Cheapest Retailer
-
£1,712 GBP
A
Retailer 2
-
£2,061 GBP
View
A
Retailer 3
-
£2,096 GBP
View
A
Retailer 4
-
£2,282 GBP
View
A
Retailer 5
-
£2,430 GBP
View
A
Retailer 6
-
£2,448 GBP
View
A
Retailer 7
-
£2,519 GBP
View
A
Retailer 8
-
£2,522 GBP
View
B+
Retailer 9
-
£2,928 GBP
View
B+
Retailer 10
-
£3,195 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
643534582 · Nov 6
£3,422 GBP
$4,581 USD
View
10 more retailers have this diamond
Prices start from £1,712 GBPSave up to £1,710 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
1.29ct Marquise
£1,712 GBP