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Round|Natural|GIA

1.29ct H IF Round Natural Diamond

EX • H/IF

Diamond specifications and retailer prices

From £4,322 GBP
As of November 1, 2026
Save £2,169 GBP (33%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £6,491 GBP at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

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 H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of November 1, 2026, with prices from £4,322 to £6,491, a £2,169 spread on the same certified stone. Helzberg Diamonds lists it at £6,491. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
H
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions6.86 × 6.91 × 4.35 mm
L/W Ratio1.01
Top View
6.86 mm6.91 mm1.29 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCuletDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £6,491 GBP|Low: £4,322 GBP|High: £8,994 GBP|Avg: £6,002 GBP|-27.8%
Helzberg Diamonds
Retailer 2
November 3, 2026
Retailer 2£4,322 GBP
Helzberg Diamonds£6,491 GBP

16 data points across 2 retailers

2 retailers£4,322 GBP to £6,491 GBP

A
Cheapest Retailer
-
£4,322 GBP
Most Expensive
B
Helzberg Diamonds
XZRNLMIHNKGHJ · Nov 3
£6,491 GBP
$8,688 USD
View
1 more retailer has this diamond
Prices start from £4,322 GBPSave up to £2,169 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
£4,322 GBP