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Round|Natural|IGI

1.29ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 819641909

Shape and cutting style on the report: Round brilliant

Certificate IGI 819641909

Diamond specifications and retailer prices

From £1,768 GBP
As of October 28, 2026
Save £52 GBP (3%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,290 GBP at Wholesale Diamonds Direct · As of October 23, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 819641909. Listed at 7 retailers as of October 28, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
FluorescenceFaint
Crown angle36.3°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 819641909
Dimensions6.89 × 6.97 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.89 mm6.97 mm1.29 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 819641909
Side View
Table 55.0%Crown 36.3°Girdle: THN-STKPavilion 40.2°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: £1,768 GBP|Low: £1,135 GBP|High: £2,620 GBP|Avg: £1,778 GBP|-11.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
October 24, 2026
Retailer 7£1,135 GBP
Retailer 4£1,401 GBP
Retailer 5£1,425 GBP
Retailer 2£1,444 GBP
Retailer 1£1,768 GBP
Retailer 3£1,780 GBP
Retailer 8£1,820 GBP
Retailer 6£2,223 GBP
Wholesale Diamonds Direct£2,290 GBP

29 data points across 9 retailers

7 retailers£1,768 GBP to £1,820 GBP

Retailer 1
-
£1,401 GBP
$1,877 USD
Price last confirmed 10 days ago
Retailer 2
-
£1,425 GBP
$1,910 USD
View
Price last confirmed 11 days ago
Retailer 3
-
£1,444 GBP
SGD 2,614 SGD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£1,768 GBP
View
A
Retailer 5
-
£1,780 GBP
$2,385 USD
View
A
Retailer 6
-
£1,820 GBP
$2,438 USD
View
Most Expensive
Wholesale Diamonds Direct
531073889 · Oct 23
£2,290 GBP
$3,068 USD
View
Price last confirmed 8 days ago
6 more retailers have this diamond
Prices start from £1,768 GBPSave up to £52 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
£1,768 GBP