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Round|Natural|GIA

1.29ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 5241000174

Certificate GIA 5241000174

Diamond specifications and retailer prices

From £4,020 GBP
$5,395 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £4,020 GBP at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

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 5241000174. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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 angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5241000174
Dimensions6.88 × 6.93 × 4.34 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.88 mm6.93 mm1.29 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241000174
Side View
Table 58.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: £4,036 GBP|Low: £2,434 GBP|High: £6,070 GBP|Avg: £4,172 GBP|-7.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
The Diamond Guys
August 26, 2026
Retailer 10£2,434 GBP
Retailer 7£3,204 GBP
Retailer 5£3,459 GBP
Retailer 6£3,564 GBP
Retailer 3£3,602 GBP
Retailer 4£3,914 GBP
The Diamond Guys£4,020 GBP
Retailer 1£4,036 GBP
Retailer 8£4,066 GBP
Retailer 11£4,955 GBP
Retailer 9£5,454 GBP
Retailer 2£6,070 GBP

32 data points across 12 retailers

1 retailer

B
The Diamond Guys
1965869693 · Nov 2
£4,020 GBP
$5,395 USD
View

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
£4,020 GBP