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Round|Lab Grown|IGI

3.00ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG618479689

Shape and cutting style on the report: Round brilliant

Certificate IGI LG618479689

Diamond specifications and retailer prices

From £3,373 GBP
$4,520 USD
As of November 1, 2026
Save £4,729 GBP (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £9,085 GBP at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 3ct lab-grown round diamond

This 3ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG618479689 or 618479689. Listed at 17 retailers as of November 1, 2026, with a 140% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.00
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618479689
Dimensions9.23 × 9.15 × 5.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
9.23 mm9.15 mm3.00 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618479689
Side View
Table 58.0%Crown 34.6°GirdlePavilion 41.5°Culet: NoneDepth 62.5%

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 1
Current: £9,085 GBP|Low: £3,373 GBP|High: £14,905 GBP|Avg: £5,900 GBP|-6.2%
Cape 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
Retailer 17
November 1, 2026
Retailer 4£3,373 GBP
Retailer 17£3,535 GBP
Retailer 3£3,647 GBP
Retailer 5£3,777 GBP
Retailer 7£3,913 GBP
Retailer 14£3,941 GBP
Retailer 9£4,160 GBP
Retailer 11£4,235 GBP
Retailer 12£4,889 GBP
Retailer 15£4,889 GBP
Retailer 16£4,997 GBP
Retailer 13£5,058 GBP
Retailer 6£7,330 GBP
Retailer 2£8,102 GBP
Retailer 10£9,021 GBP
Cape Diamonds£9,085 GBP
Retailer 8£13,978 GBP

25 data points across 17 retailers

17 retailers£3,373 GBP to £8,102 GBP

B+
Cheapest Retailer
-
£3,373 GBP
$4,520 USD
B+
Retailer 2
-
£3,535 GBP
$4,737 USD
View
B+
Retailer 3
-
£3,647 GBP
$4,887 USD
View
B
Retailer 4
-
£3,777 GBP
$5,061 USD
View
Final sale: no returns
B
Retailer 5
-
£3,913 GBP
$5,243 USD
View
B
Retailer 6
-
£3,941 GBP
$5,280 USD
View
Retailer 7
-
£4,160 GBP
$5,574 USD
View
Price last confirmed 16 days ago
B
Retailer 8
-
£4,235 GBP
$5,675 USD
View
B
Retailer 9
-
£4,889 GBP
View
B
Retailer 10
-
£4,889 GBP
$6,551 USD
View
B
Retailer 11
-
£4,997 GBP
$6,696 USD
View
B
Retailer 12
-
£5,058 GBP
View
B
Retailer 13
-
£7,330 GBP
$9,821 USD
View
B
Retailer 14
-
£8,102 GBP
View
Retailer 15
-
£9,021 GBP
A$18,595 AUD
View
Price under review
Most Expensive
Cape Diamonds
cert_618479689 · Oct 29
£9,085 GBP
ZAR 196,651 ZAR
View
Price under review
15 more retailers have this diamond
Prices start from £3,373 GBPSave up to £4,729 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
£3,373 GBP