Round|Natural|GIA

1.29ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2327606566

Certificate GIA 2327606566

Diamond specifications and retailer prices

From £5,087 GBP
$6,826 USD
As of November 2, 2026
Save £2,120 GBP (29%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £7,207 GBP at Yorxs · As of November 2, 2026
View at Yorxs

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2327606566. Listed at 5 retailers as of November 2, 2026, with prices from £5,087 to £7,207, a £2,120 spread on the same certified stone. Yorxs lists it at £7,207. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2327606566
Dimensions6.95 × 6.92 × 4.32 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.95 mm6.92 mm1.29 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2327606566
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £6,867 GBP|Low: £5,035 GBP|High: £7,262 GBP|Avg: £6,391 GBP|+0.7%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 3, 2026
Retailer 3£5,087 GBP
Retailer 2£6,468 GBP
Retailer 1£6,867 GBP
Yorxs£7,207 GBP

37 data points across 4 retailers

5 retailers£5,087 GBP to £7,207 GBP

B+
Cheapest Retailer
-
£5,087 GBP
$6,826 USD
B
Retailer 2
-
£6,468 GBP
$8,679 USD
View
Retailer 3
-
£6,468 GBP
$8,679 USD
View
Price last confirmed 24 days ago
B
Retailer 4
-
£6,867 GBP
View
Most Expensive
B
Yorxs
1AT253 · Nov 2
£7,207 GBP
€9,211 EUR
View
4 more retailers have this diamond
Prices start from £5,087 GBPSave up to £2,120 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 Round
£5,087 GBP