CaratHunter
Plans
Round|Natural|GIA

3.00ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 2566166788

Certificate GIA 2566166788

Diamond specifications and retailer prices

From £18,582 GBP
As of November 5, 2026
Save £4,668 GBP (20%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £42,524 GBP at 77 Diamonds · As of October 27, 2026
View at 77 Diamonds

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566166788. Listed at 14 retailers as of November 4, 2026, with a 25% 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

3.00
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566166788
Dimensions9.12 × 9.17 × 5.74 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Knot, Indented Natural
Top View
9.12 mm9.17 mm3.00 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2566166788
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £42,524 GBP|Low: £18,582 GBP|High: £42,524 GBP|Avg: £23,207 GBP|+112.4%
77 Diamonds
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
November 5, 2026
Retailer 14£18,582 GBP
Retailer 11£18,699 GBP
Retailer 10£19,866 GBP
Retailer 6£20,113 GBP
Retailer 8£20,425 GBP
Retailer 12£20,660 GBP
Retailer 3£21,313 GBP
Retailer 5£22,379 GBP
Retailer 2£22,915 GBP
Retailer 13£23,045 GBP
Retailer 7£23,089 GBP
Retailer 9£23,250 GBP
Retailer 15£23,880 GBP
Retailer 4£23,978 GBP
Retailer 16£30,318 GBP
77 Diamonds£42,524 GBP

21 data points across 16 retailers

14 retailers£18,582 GBP to £23,250 GBP

A
Cheapest Retailer
-
£18,582 GBP
A
Retailer 2
-
£18,699 GBP
View
A
Retailer 3
-
£19,866 GBP
View
Retailer 4
-
£20,113 GBP
View
Price last confirmed 20 days ago
A
Retailer 5
-
£20,660 GBP
View
Retailer 6
-
£21,313 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£22,379 GBP
View
Price last confirmed 22 days ago
A
Retailer 8
-
£22,915 GBP
View
A
Retailer 9
-
£23,045 GBP
View
Retailer 10
-
£23,089 GBP
View
Price last confirmed 17 days ago
A
Retailer 11
-
£23,250 GBP
View
Retailer 12
-
£23,978 GBP
View
Price last confirmed 19 days ago
Retailer 13
-
£30,318 GBP
View
Price last confirmed 18 days ago
Most Expensive
77 Diamonds
RBPUIFSMXJ82ZKH · Oct 27
£42,524 GBP
View
Price last confirmed 10 days ago
13 more retailers have this diamond
Prices start from £18,582 GBPSave up to £4,668 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
3.00ct Round
£18,582 GBP