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Round|Lab Grown|IGI

12.05ct F VS1 Round Lab Grown Diamond

EX • F/VS1 • IGI LG598314604

Shape and cutting style on the report: Round brilliant

Certificate IGI LG598314604

Diamond specifications and retailer prices

From £3,850 GBP
HK$40,300 HKD
As of November 1, 2026
Save £7,289 GBP (65%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £11,138 GBP at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 12.05ct lab-grown round diamond

This 12.05ct lab-grown round sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG598314604 or 598314604. Listed at 5 retailers as of October 31, 2026, with prices from £3,850 to £11,138, a £7,289 spread on the same certified stone. Michael Trio lists it at £11,138. 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

12.05
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598314604
Dimensions15.06 × 15.09 × 8.71 mm
L/W Ratio1.00
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
15.06 mm15.09 mm12.05 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598314604
Side View
Table 61.0%Crown 32.6°GirdlePavilion 40.2°Culet: NoneDepth 57.8%

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 1
Current: £11,138 GBP|Low: £3,850 GBP|High: £16,100 GBP|Avg: £7,654 GBP|-7.4%
Michael Trio
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
October 9, 2026
Retailer 2£3,850 GBP
Retailer 14£4,350 GBP
Retailer 13£4,429 GBP
Retailer 11£5,699 GBP
Retailer 5£5,975 GBP
Retailer 3£5,978 GBP
Retailer 15£6,381 GBP
Retailer 10£6,847 GBP
Retailer 8£6,960 GBP
Retailer 4£7,687 GBP
Retailer 12£8,583 GBP
Michael Trio£11,138 GBP
Retailer 9£11,407 GBP
Retailer 6£12,528 GBP
Retailer 7£16,100 GBP

12 data points across 15 retailers

5 retailers£3,850 GBP to £11,138 GBP

A
Cheapest Retailer
-
£3,850 GBP
HK$40,300 HKD
Retailer 2
-
£5,975 GBP
$8,006 USD
View
Price last confirmed 30 days ago
Retailer 3
-
£6,847 GBP
ZAR 148,211 ZAR
View
Price last confirmed 34 days ago
Retailer 4
-
£8,583 GBP
A$17,693 AUD
View
Price last confirmed 34 days ago
Most Expensive
B
Michael Trio
1012130551 · Oct 31
£11,138 GBP
SGD 20,168 SGD
View
4 more retailers have this diamond
Prices start from £3,850 GBPSave up to £7,289 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
12.05ct Round
£3,850 GBP