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Round|Natural|GIA

1.29ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1568463127

Certificate GIA 1568463127

Diamond specifications and retailer prices

From £1,880 GBP
As of November 5, 2026
Save £1,933 GBP (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,812 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.29ct natural round diamond

This 1.29ct natural round 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 top-tier cut grade and certified by GIA 1568463127. Listed at 13 retailers as of November 5, 2026, with prices from £1,880 to £3,812, a £1,933 spread on the same certified stone. Wholesale Diamonds Direct lists it at £3,812. 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

1.29
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1568463127
Dimensions6.90 × 6.93 × 4.34 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.90 mm6.93 mm1.29 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1568463127
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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: £2,462 GBP|Low: £1,877 GBP|High: £3,812 GBP|Avg: £2,736 GBP|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 6, 2026
Retailer 6£1,880 GBP
Retailer 9£2,123 GBP
Retailer 2£2,261 GBP
Retailer 12£2,288 GBP
Retailer 8£2,320 GBP
Retailer 1£2,462 GBP
Retailer 4£2,557 GBP
Retailer 10£2,725 GBP
Retailer 3£2,785 GBP
Retailer 5£2,814 GBP
Retailer 7£2,898 GBP
Retailer 11£3,580 GBP
Wholesale Diamonds Direct£3,812 GBP

22 data points across 13 retailers

13 retailers£1,880 GBP to £3,812 GBP

A
Cheapest Retailer
-
£1,880 GBP
A
Retailer 2
-
£2,123 GBP
View
A
Retailer 3
-
£2,261 GBP
View
A
Retailer 4
-
£2,288 GBP
View
A
Retailer 5
-
£2,320 GBP
View
A
Retailer 6
-
£2,462 GBP
View
A
Retailer 7
-
£2,557 GBP
View
B+
Retailer 8
-
£2,725 GBP
View
B+
Retailer 9
-
£2,785 GBP
View
B+
Retailer 10
-
£2,814 GBP
View
B+
Retailer 11
-
£2,898 GBP
View
B
Retailer 12
-
£3,580 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
611346577 · Nov 6
£3,812 GBP
$5,103 USD
View
12 more retailers have this diamond
Prices start from £1,880 GBPSave up to £1,933 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 Round
£1,880 GBP