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Round|Natural|GIA

3.01ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1555886591

Certificate GIA 1555886591

Diamond specifications and retailer prices

From £18,127 GBP
As of November 4, 2026
Save £11,083 GBP (38%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £29,210 GBP at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 3.01ct natural round diamond

This 3.01ct natural round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555886591. Listed at 11 retailers as of November 4, 2026, with prices from £18,127 to £29,210, a £11,083 spread on the same certified stone. Helzberg Diamonds lists it at £29,210. 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

3.01
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1555886591
Dimensions9.23 × 9.26 × 5.71 mm
L/W Ratio1.00
Culet sizeNone
Top View
9.23 mm9.26 mm3.01 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1555886591
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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 4
Current: £29,210 GBP|Low: £18,127 GBP|High: £31,990 GBP|Avg: £23,204 GBP|-8.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 11£18,127 GBP
Retailer 5£19,087 GBP
Retailer 7£19,311 GBP
Retailer 6£19,781 GBP
Retailer 3£20,755 GBP
Retailer 10£22,273 GBP
Retailer 2£22,550 GBP
Retailer 4£23,030 GBP
Retailer 9£23,262 GBP
Retailer 8£24,515 GBP
Helzberg Diamonds£29,210 GBP

37 data points across 11 retailers

11 retailers£18,127 GBP to £29,210 GBP

A
Cheapest Retailer
-
£18,127 GBP
A
Retailer 2
-
£19,087 GBP
View
A
Retailer 3
-
£19,311 GBP
View
A
Retailer 4
-
£19,781 GBP
View
A
Retailer 5
-
£20,755 GBP
View
A
Retailer 6
-
£22,273 GBP
View
A
Retailer 7
-
£22,550 GBP
View
A
Retailer 8
-
£23,030 GBP
View
A
Retailer 9
-
£23,262 GBP
View
A
Retailer 10
-
£24,515 GBP
View
Most Expensive
A
Helzberg Diamonds
XZRHLLLOOMLPH · Nov 4
£29,210 GBP
$39,314 USD
View
10 more retailers have this diamond
Prices start from £18,127 GBPSave up to £11,083 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
3.01ct Round
£18,127 GBP