Round|Natural|IGI

1.27ct G IF Round Natural Diamond

EX • G/IF • IGI 813629873

Shape and cutting style on the report: Round brilliant

Certificate IGI 813629873

Diamond specifications and retailer prices

From £3,190 GBP
As of October 30, 2026
Save £814 GBP (20%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £6,186 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.27ct natural round diamond

This 1.27ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 813629873. Listed at 9 retailers as of October 30, 2026, with a 26% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.3°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 813629873
Dimensions6.87 × 6.89 × 4.29 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.87 mm6.89 mm1.27 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 813629873
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A+
Exceptional
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: £6,186 GBP|Low: £3,109 GBP|High: £6,186 GBP|Avg: £4,278 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7£3,109 GBP
Retailer 3£3,190 GBP
Retailer 6£3,736 GBP
Retailer 5£3,737 GBP
Retailer 2£4,005 GBP
Retailer 4£5,686 GBP
NZ Jewellers£6,186 GBP

31 data points across 7 retailers

9 retailers£3,190 GBP to £4,005 GBP

A+
Cheapest Retailer
-
£3,190 GBP
Retailer 2
-
£3,551 GBP
View
Price last confirmed 29 days ago
Retailer 3
-
£3,551 GBP
View
Price last confirmed 38 days ago
A
Retailer 4
-
£3,736 GBP
View
A
Retailer 5
-
£3,737 GBP
View
A
Retailer 6
-
£4,005 GBP
View
Retailer 7
-
£5,686 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£6,186 GBP
View
Price last confirmed 66 days ago
Most Expensive
NZ Jewellers
121c23a7-a323-43e0-8aa1-aff587d8aec8 · Sep 28
£6,186 GBP
$8,326 USD
View
Price last confirmed 38 days ago
8 more retailers have this diamond
Prices start from £3,190 GBPSave up to £814 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+
1.27ct Round
£3,190 GBP