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Round|Natural|IGI

1.30ct G IF Round Natural Diamond

EX • G/IF • IGI 825618539

Shape and cutting style on the report: Round brilliant

Certificate IGI 825618539

Diamond specifications and retailer prices

From £4,144 GBP
As of November 2, 2026
Save £2,672 GBP (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £8,128 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct 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 825618539. Listed at 8 retailers as of November 2, 2026, with a 64% 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

1.30
Carat
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 825618539
Dimensions6.90 × 6.96 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.90 mm6.96 mm1.30 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825618539
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 41.2°CuletDepth 62.8%

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: Nov 2
Current: £4,144 GBP|Low: £4,142 GBP|High: £7,236 GBP|Avg: £5,075 GBP|-5.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 1£4,144 GBP
Retailer 3£4,306 GBP
Retailer 4£4,421 GBP
Retailer 2£6,815 GBP

23 data points across 4 retailers

8 retailers£4,144 GBP to £6,815 GBP

A
Cheapest Retailer
-
£4,144 GBP
A
Retailer 2
-
£4,306 GBP
View
A
Retailer 3
-
£4,421 GBP
View
Retailer 4
-
£4,836 GBP
View
Price last confirmed 29 days ago
Retailer 5
-
£4,860 GBP
View
Price last confirmed 41 days ago
Retailer 6
-
£4,935 GBP
View
Price last confirmed 38 days ago
A
Retailer 7
-
£6,815 GBP
View
Most Expensive
NZ Jewellers
3f3b748a-c117-4413-bb48-d036b6588782 · Sep 28
£8,128 GBP
$10,940 USD
View
Price last confirmed 38 days ago
7 more retailers have this diamond
Prices start from £4,144 GBPSave up to £2,672 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
1.30ct Round
£4,144 GBP