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Round|Lab Grown|IGI

0.34ct I SI1 Round Lab Grown Diamond

VG • I/SI1 • IGI LG459129416

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459129416

Diamond specifications and retailer prices

From £113 GBP
$151 USD
As of October 29, 2026
Save £545 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £658 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.34ct lab-grown round diamond

This 0.34ct lab-grown round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG459129416 or 459129416. Listed at 10 retailers as of October 29, 2026, with prices from £113 to £658, a £545 spread on the same certified stone. MOH London lists it at £658. 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

0.34
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459129416
Dimensions4.40 × 4.38 × 2.82 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
4.40 mm4.38 mm0.34 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459129416
Side View
Table 60.5%Crown 38.6°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 64.2%

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: Oct 29
Current: £658 GBP|Low: £108 GBP|High: £663 GBP|Avg: £290 GBP|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4£113 GBP
Retailer 8£131 GBP
Retailer 6£140 GBP
Retailer 11£154 GBP
Retailer 5£172 GBP
Retailer 7£257 GBP
Retailer 2£295 GBP
Retailer 3£306 GBP
Retailer 9£343 GBP
Retailer 10£563 GBP
MOH London£658 GBP

16 data points across 11 retailers

10 retailers£113 GBP to £658 GBP

B+
Cheapest Retailer
-
£113 GBP
$151 USD
B+
Retailer 2
-
£131 GBP
$175 USD
View
B+
Retailer 3
-
£140 GBP
$188 USD
View
B+
Retailer 4
-
£140 GBP
$188 USD
View
B+
Retailer 5
-
£172 GBP
$230 USD
View
B
Retailer 6
-
£257 GBP
$344 USD
View
B
Retailer 7
-
£295 GBP
€377 EUR
View
B
Retailer 8
-
£306 GBP
View
B
Retailer 9
-
£450 GBP
$603 USD
View
Most Expensive
C
MOH London
LG459129416 · Oct 29
£658 GBP
View
9 more retailers have this diamond
Prices start from £113 GBPSave up to £545 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+
0.34ct Round
£113 GBP