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Round|Lab Grown|IGI

3.00ct K SI1 Round Lab Grown Diamond

VG • K/SI1 • IGI LG478113815

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478113815

Diamond specifications and retailer prices

From £3,412 GBP
As of November 5, 2026
Save £4,783 GBP (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £8,195 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 3ct lab-grown round diamond

This 3ct lab-grown round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG478113815 or 478113815. Listed at 9 retailers as of November 3, 2026, with prices from £3,412 to £8,195, a £4,783 spread on the same certified stone. MOH London lists it at £8,195. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.00
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478113815
Dimensions9.17 × 9.03 × 5.55 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeVery Small
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.17 mm9.03 mm3.00 ctK / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG478113815
Side View
Table 63.5%Crown 36.9°Girdle: STK-THKPavilion 40°Culet: Very SmallDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £8,195 GBP|Low: £3,275 GBP|High: £8,293 GBP|Avg: £4,856 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 3£3,412 GBP
Retailer 7£3,575 GBP
Retailer 5£3,958 GBP
Retailer 9£3,958 GBP
Retailer 4£3,986 GBP
Retailer 8£4,945 GBP
Retailer 2£5,055 GBP
Retailer 6£6,121 GBP
MOH London£8,195 GBP

13 data points across 9 retailers

9 retailers£3,412 GBP to £8,195 GBP

B+
Cheapest Retailer
-
£3,412 GBP
B+
Retailer 2
-
£3,575 GBP
View
B+
Retailer 3
-
£3,958 GBP
View
Retailer 4
-
£3,958 GBP
View
Price last confirmed 25 days ago
B+
Retailer 5
-
£3,986 GBP
View
B
Retailer 6
-
£4,945 GBP
View
B
Retailer 7
-
£5,055 GBP
View
B
Retailer 8
-
£6,121 GBP
View
Most Expensive
C
MOH London
LG478113815 · Nov 3
£8,195 GBP
View
8 more retailers have this diamond
Prices start from £3,412 GBPSave up to £4,783 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.

B+
3.00ct Round
£3,412 GBP