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Round|Natural|GIA

1.29ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1499844447

Certificate GIA 1499844447

Diamond specifications and retailer prices

From £2,308 GBP
$3,092 USD
As of October 30, 2026
Save £1,142 GBP (33%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,450 GBP at 77 Diamonds · As of October 29, 2026
View at 77 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1499844447. Listed at 5 retailers as of October 29, 2026, with prices from £2,308 to £3,450, a £1,142 spread on the same certified stone. 77 Diamonds lists it at £3,450. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1499844447
Dimensions6.95 × 6.91 × 4.37 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Girdle conditionFaceted
Cert comments
Additional twinning wisps clouds and surface graining are not shown.
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity, Needle, Knot
Top View
6.95 mm6.91 mm1.29 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1499844447
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,450 GBP|Low: £2,308 GBP|High: £3,483 GBP|Avg: £2,607 GBP|+1.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 4£2,308 GBP
Retailer 3£2,332 GBP
Retailer 2£2,349 GBP
77 Diamonds£3,450 GBP

30 data points across 4 retailers

5 retailers£2,308 GBP to £3,450 GBP

A
Cheapest Retailer
-
£2,308 GBP
$3,092 USD
A
Retailer 2
-
£2,332 GBP
$3,124 USD
View
A
Retailer 3
-
£2,349 GBP
$3,147 USD
View
A
Retailer 4
-
£2,457 GBP
A$5,064 AUD
View
Most Expensive
B+
77 Diamonds
RBZAZ3GWKCD · Oct 29
£3,450 GBP
View
4 more retailers have this diamond
Prices start from £2,308 GBPSave up to £1,142 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
£2,308 GBP