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Round|Lab Grown|IGI

0.30ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG694536732

Shape and cutting style on the report: Round brilliant

Certificate IGI LG694536732

Diamond specifications and retailer prices

From £102 GBP
$137 USD
As of October 29, 2026
Save £305 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £407 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG694536732 or 694536732. Listed at 4 retailers as of October 27, 2026, with prices from £102 to £407, a £305 spread on the same certified stone. NZ Jewellers lists it at £407. 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

0.30
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle34.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG694536732
Dimensions4.24 × 4.27 × 2.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
4.24 mm4.27 mm0.30 ctH / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI LG694536732
Side View
Table 59.0%Crown 34.6°Girdle: MED-STKPavilion 41.5°CuletDepth 62.3%

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: Oct 29
Current: £102 GBP|Low: £98 GBP|High: £209 GBP|Avg: £138 GBP|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1£102 GBP
Retailer 3£119 GBP
Retailer 2£127 GBP
Retailer 4£209 GBP

3 data points across 4 retailers

4 retailers£102 GBP to £407 GBP

A
Cheapest Retailer
-
£102 GBP
$137 USD
B+
Retailer 2
-
£119 GBP
$159 USD
View
B+
Retailer 3
-
£127 GBP
$170 USD
View
Most Expensive
C
NZ Jewellers
30ab604f-42bf-4e1f-b1a5-25a1167eb884 · Oct 27
£407 GBP
$545 USD
View
3 more retailers have this diamond
Prices start from £102 GBPSave up to £305 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
0.30ct Round
£102 GBP