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Round|Natural|GIA

1.29ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2245097439

Certificate GIA 2245097439

Diamond specifications and retailer prices

From £3,221 GBP
$4,323 USD
As of October 29, 2026
Save £2,388 GBP (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,809 GBP at Wholesale Diamonds Direct · As of October 26, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245097439. Listed at 15 retailers as of October 28, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2245097439
Dimensions6.94 × 6.98 × 4.34 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.94 mm6.98 mm1.29 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245097439
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.3%

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: Oct 29
Current: £4,214 GBP|Low: £3,221 GBP|High: £5,809 GBP|Avg: £4,242 GBP|+0.9%
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
October 30, 2026
Retailer 8£3,221 GBP
Retailer 9£3,366 GBP
Retailer 4£3,443 GBP
Retailer 7£3,549 GBP
Retailer 6£3,665 GBP
Retailer 2£4,082 GBP
Retailer 3£4,086 GBP
Retailer 12£4,211 GBP
Retailer 1£4,214 GBP
Retailer 5£4,510 GBP
Retailer 11£5,482 GBP
Retailer 10£5,610 GBP
Wholesale Diamonds Direct£5,809 GBP

14 data points across 13 retailers

15 retailers£3,221 GBP to £5,610 GBP

A
Cheapest Retailer
-
£3,221 GBP
$4,323 USD
A
Retailer 2
-
£3,311 GBP
SGD 6,005 SGD
View
A
Retailer 3
-
£3,366 GBP
$4,517 USD
View
B+
Retailer 4
-
£3,443 GBP
$4,620 USD
View
Retailer 5
-
£3,469 GBP
$4,655 USD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£3,549 GBP
SGD 6,436 SGD
View
B+
Retailer 7
-
£3,665 GBP
View
B+
Retailer 8
-
£4,082 GBP
$5,478 USD
View
B+
Retailer 9
-
£4,086 GBP
$5,483 USD
View
B+
Retailer 10
-
£4,211 GBP
View
B+
Retailer 11
-
£4,214 GBP
€5,386 EUR
View
B+
Retailer 12
-
£4,510 GBP
$6,052 USD
View
B
Retailer 13
-
£5,482 GBP
$7,357 USD
View
B
Retailer 14
-
£5,610 GBP
$7,528 USD
View
Most Expensive
Wholesale Diamonds Direct
592344934 · Oct 26
£5,809 GBP
$7,796 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from £3,221 GBPSave up to £2,388 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
£3,221 GBP