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Round|Natural|IGI

3.08ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 573303593

Shape and cutting style on the report: Round brilliant

Certificate IGI 573303593

Diamond specifications and retailer prices

From £8,007 GBP
As of November 5, 2026
Save £3,936 GBP (33%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £12,837 GBP at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 3.08ct natural round diamond

This 3.08ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 573303593. Listed at 18 retailers as of November 4, 2026, with a 49% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.08
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 573303593
Dimensions9.38 × 9.35 × 5.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT Faint Brown
Top View
9.38 mm9.35 mm3.08 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 573303593
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.5%

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: Nov 5
Current: £8,388 GBP|Low: £8,007 GBP|High: £14,268 GBP|Avg: £9,807 GBP|-17.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£8,007 GBP
Retailer 9£8,136 GBP
Retailer 2£8,178 GBP
Retailer 8£8,255 GBP
Retailer 7£8,336 GBP
Retailer 1£8,388 GBP
Retailer 4£9,598 GBP
Retailer 3£9,773 GBP
Retailer 5£11,943 GBP

30 data points across 9 retailers

18 retailers£8,007 GBP to £11,943 GBP

A
Cheapest Retailer
-
£8,007 GBP
Retailer 2
-
£8,136 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
£8,178 GBP
View
A
Retailer 4
-
£8,255 GBP
View
A
Retailer 5
-
£8,336 GBP
View
A
Retailer 6
-
£8,388 GBP
View
Retailer 7
-
£8,623 GBP
View
Price last confirmed 43 days ago
Retailer 8
-
£9,210 GBP
View
Price last confirmed 53 days ago
A
Retailer 9
-
£9,598 GBP
View
Retailer 10
-
£9,753 GBP
View
Price last confirmed 38 days ago
A
Retailer 11
-
£9,773 GBP
View
Retailer 12
-
£9,906 GBP
View
Price last confirmed 36 days ago
Retailer 13
-
£10,114 GBP
View
Price last confirmed 45 days ago
Retailer 14
-
£10,287 GBP
View
Price last confirmed 38 days ago
Retailer 15
-
£10,628 GBP
View
Price last confirmed 53 days ago
B+
Retailer 16
-
£11,943 GBP
View
Retailer 17
-
£12,019 GBP
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
b766d639-3948-4655-8e5e-7f8316ca1339 · Sep 15
£12,837 GBP
$17,278 USD
View
Price last confirmed 52 days ago
17 more retailers have this diamond
Prices start from £8,007 GBPSave up to £3,936 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
3.08ct Round
£8,007 GBP