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Round|Lab Grown|IGI

0.71ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG515207111

Shape and cutting style on the report: Round brilliant

Certificate IGI LG515207111

Diamond specifications and retailer prices

From £94 GBP
$125 USD
As of October 29, 2026
Save £880 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,856 GBP at Allurez · As of October 26, 2026
View at Allurez

About this 0.71ct lab-grown round diamond

This 0.71ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515207111 or 515207111. Listed at 13 retailers as of October 29, 2026, with a 937% 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515207111
Dimensions5.74 × 5.70 × 3.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.74 mm5.70 mm0.71 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515207111
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.8%

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: £2,856 GBP|Low: £90 GBP|High: £2,856 GBP|Avg: £489 GBP
Allurez
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
Retailer 16
October 29, 2026
Retailer 11£94 GBP
Retailer 16£104 GBP
Retailer 14£108 GBP
Retailer 3£211 GBP
Retailer 15£223 GBP
Retailer 2£226 GBP
Retailer 5£241 GBP
Retailer 7£255 GBP
Retailer 6£355 GBP
Retailer 13£372 GBP
Retailer 12£383 GBP
Retailer 10£393 GBP
Retailer 8£457 GBP
Retailer 4£506 GBP
Retailer 9£974 GBP
Allurez£2,856 GBP

20 data points across 16 retailers

13 retailers£94 GBP to £974 GBP

A
Cheapest Retailer
-
£94 GBP
$125 USD
A
Retailer 2
-
£104 GBP
$139 USD
View
Final sale: no returns
A
Retailer 3
-
£108 GBP
$144 USD
View
A
Retailer 4
-
£211 GBP
HK$2,200 HKD
View
A
Retailer 5
-
£223 GBP
$297 USD
View
A
Retailer 6
-
£226 GBP
€286 EUR
View
B+
Retailer 7
-
£372 GBP
$496 USD
View
B+
Retailer 8
-
£383 GBP
$510 USD
View
B+
Retailer 9
-
£393 GBP
$524 USD
View
B
Retailer 10
-
£457 GBP
View
B
Retailer 11
-
£506 GBP
SGD 910 SGD
View
B
Retailer 12
-
£974 GBP
View
Most Expensive
Allurez
5432261 · Oct 26
£2,856 GBP
$3,803 USD
View
Price under review
12 more retailers have this diamond
Prices start from £94 GBPSave up to £880 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
£94 GBP