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Round|Natural|IGI

1.29ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 670444282

Shape and cutting style on the report: Round brilliant

Certificate IGI 670444282

Diamond specifications and retailer prices

From £2,532 GBP
$3,393 USD
As of October 30, 2026
Save £2,483 GBP (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,015 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 670444282. Listed at 13 retailers as of October 30, 2026, with prices from £2,532 to £5,015, a £2,483 spread on the same certified stone. NZ Jewellers lists it at £5,015. 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 angle36.5°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 670444282
Dimensions6.96 × 6.91 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.96 mm6.91 mm1.29 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670444282
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

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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: £5,015 GBP|Low: £2,376 GBP|High: £5,015 GBP|Avg: £3,257 GBP|+2.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 3£2,532 GBP
Retailer 5£2,555 GBP
Retailer 11£2,590 GBP
Retailer 14£2,614 GBP
Retailer 13£2,656 GBP
Retailer 9£2,701 GBP
Retailer 4£2,879 GBP
Retailer 16£2,879 GBP
Retailer 12£2,989 GBP
Retailer 15£3,321 GBP
Retailer 6£3,342 GBP
Retailer 2£3,370 GBP
Retailer 8£3,430 GBP
Retailer 7£4,537 GBP
Retailer 10£4,840 GBP
NZ Jewellers£5,015 GBP

36 data points across 16 retailers

13 retailers£2,532 GBP to £5,015 GBP

A
Cheapest Retailer
-
£2,532 GBP
$3,393 USD
Retailer 2
-
£2,590 GBP
$3,470 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
£2,614 GBP
$3,502 USD
View
B+
Retailer 4
-
£2,656 GBP
$3,559 USD
View
Final sale: no returns
A
Retailer 5
-
£2,701 GBP
View
B+
Retailer 6
-
£2,879 GBP
$3,857 USD
View
B+
Retailer 7
-
£2,879 GBP
$3,857 USD
View
B+
Retailer 8
-
£2,989 GBP
$4,005 USD
View
B+
Retailer 9
-
£3,180 GBP
View
B+
Retailer 10
-
£3,321 GBP
$4,450 USD
View
B+
Retailer 11
-
£3,370 GBP
€4,301 EUR
View
B
Retailer 12
-
£4,840 GBP
View
Most Expensive
B
NZ Jewellers
d3273f70-975b-4488-8981-a1337a750251 · Oct 30
£5,015 GBP
$6,720 USD
View
12 more retailers have this diamond
Prices start from £2,532 GBPSave up to £2,483 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
£2,532 GBP