CaratHunter
Plans
Marquise|Natural|GIA

1.29ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 2566597529

Certificate GIA 2566597529

Diamond specifications and retailer prices

From £3,348 GBP
As of November 6, 2026
Save £2,623 GBP (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £5,971 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 2566597529. Listed at 14 retailers as of November 6, 2026, with prices from £3,348 to £5,971, a £2,623 spread on the same certified stone. Wholesale Diamonds Direct lists it at £5,971. 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
FluorescenceNone
Crown angle40.27°
Pavilion angle38.07°
OriginNatural
Grading LabGIA
CertificateGIA 2566597529
Dimensions10.76 × 5.65 × 3.47 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.76 mm5.65 mm1.29 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566597529
Side View
Table 58.0%Crown 40.27°Girdle: THK-VTKPavilion 38.07°Culet: NDepth 61.5%

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: £4,669 GBP|Low: £3,348 GBP|High: £5,971 GBP|Avg: £4,117 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 6, 2026
Retailer 5£3,348 GBP
Retailer 12£3,387 GBP
Retailer 8£3,447 GBP
Retailer 2£3,485 GBP
Retailer 11£3,564 GBP
Retailer 13£3,586 GBP
Retailer 4£3,673 GBP
Retailer 7£3,744 GBP
Retailer 3£4,219 GBP
Retailer 10£4,220 GBP
Retailer 6£4,325 GBP
Retailer 1£4,669 GBP
Retailer 9£5,676 GBP
Wholesale Diamonds Direct£5,971 GBP

22 data points across 14 retailers

14 retailers£3,348 GBP to £5,971 GBP

B+
Cheapest Retailer
-
£3,348 GBP
B+
Retailer 2
-
£3,387 GBP
View
B+
Retailer 3
-
£3,447 GBP
View
B+
Retailer 4
-
£3,485 GBP
View
B+
Retailer 5
-
£3,564 GBP
View
B+
Retailer 6
-
£3,586 GBP
View
B+
Retailer 7
-
£3,673 GBP
View
B+
Retailer 8
-
£3,744 GBP
View
B
Retailer 9
-
£4,219 GBP
View
B
Retailer 10
-
£4,220 GBP
View
B
Retailer 11
-
£4,325 GBP
View
B
Retailer 12
-
£4,669 GBP
View
B
Retailer 13
-
£5,676 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
564760418 · Nov 6
£5,971 GBP
$7,992 USD
View
13 more retailers have this diamond
Prices start from £3,348 GBPSave up to £2,623 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
£3,348 GBP