Round|Lab Grown|IGI

0.70ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG436073318

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436073318

Diamond specifications and retailer prices

From £338 GBP
$450 USD
As of October 29, 2026
5 retailers carry this diamond
Most expensive: £590 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.7ct lab-grown round diamond

This 0.7ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073318 or 436073318. Listed at 5 retailers as of October 29, 2026. 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

0.70
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073318
Dimensions5.74 × 5.73 × 3.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
5.74 mm5.73 mm0.70 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436073318
Side View
Table 57.0%Crown 32.7°Girdle: MediumPavilion 41.6°Culet: NoneDepth 61.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £590 GBP|Low: £148 GBP|High: £1,570 GBP|Avg: £434 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 4, 2026
Retailer 8£148 GBP
Retailer 7£165 GBP
Retailer 9£172 GBP
Retailer 12£179 GBP
Retailer 10£181 GBP
Retailer 6£183 GBP
Retailer 11£301 GBP
Retailer 2£338 GBP
Retailer 3£538 GBP
NZ Jewellers£590 GBP
Retailer 5£869 GBP
Retailer 4£1,570 GBP

8 data points across 12 retailers

5 retailers

Retailer 1
-
£148 GBP
$197 USD
Price last confirmed 38 days ago
Retailer 2
-
£181 GBP
$241 USD
View
Price last confirmed 31 days ago
B+
Retailer 3
-
£338 GBP
$450 USD
View
Retailer 4
-
£538 GBP
$717 USD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
027b97af-ad9b-4ef0-b1b8-632a120a2670 · Sep 28
£590 GBP
$786 USD
View
Price last confirmed 32 days ago
4 more retailers have this diamond
Prices start from £338 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+
0.70ct Round
£338 GBP