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Round|Lab Grown|IGI

0.71ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG414059524

Shape and cutting style on the report: Round brilliant

Certificate IGI LG414059524

Diamond specifications and retailer prices

From £327 GBP
$435 USD
As of October 29, 2026
Save £978 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,501 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 0.71ct lab-grown round diamond

This 0.71ct 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 LG414059524 or 414059524. Listed at 11 retailers as of October 27, 2026, with a 299% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.71
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.3°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG414059524
Dimensions5.69 × 5.64 × 3.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
5.69 mm5.64 mm0.71 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG414059524
Side View
Table 58.0%Crown 36.3°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,501 GBP|Low: £327 GBP|High: £1,632 GBP|Avg: £693 GBP|+0.6%
MOH London
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
October 29, 2026
Retailer 8£327 GBP
Retailer 9£346 GBP
Retailer 12£367 GBP
Retailer 13£367 GBP
Retailer 6£392 GBP
Retailer 10£406 GBP
Retailer 3£516 GBP
Retailer 14£589 GBP
Retailer 11£638 GBP
Retailer 2£690 GBP
Retailer 4£704 GBP
Retailer 7£1,139 GBP
MOH London£1,501 GBP
Retailer 5£1,632 GBP

19 data points across 14 retailers

11 retailers£327 GBP to £1,306 GBP

A
Cheapest Retailer
-
£327 GBP
$435 USD
A
Retailer 2
-
£346 GBP
$460 USD
View
A
Retailer 3
-
£367 GBP
$487 USD
View
Final sale: no returns
A
Retailer 4
-
£367 GBP
$487 USD
View
B+
Retailer 5
-
£406 GBP
$540 USD
View
B+
Retailer 6
-
£406 GBP
$540 USD
View
B+
Retailer 7
-
£638 GBP
$848 USD
View
B
Retailer 8
-
£690 GBP
€873 EUR
View
B
Retailer 9
-
£1,139 GBP
$1,514 USD
View
B
Retailer 10
-
£1,306 GBP
$1,735 USD
View
Most Expensive
B
MOH London
LG414059524 · Oct 21
£1,501 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from £327 GBPSave up to £978 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
0.71ct Round
£327 GBP