Radiant|Lab Grown|IGI

0.71ct H SI1 Radiant Lab Grown Diamond

VG • H/SI1 • IGI LG530226181

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG530226181

Diamond specifications and retailer prices

From £90 GBP
$121 USD
As of November 2, 2026
Save £944 GBP (91%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,034 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.71ct lab-grown radiant diamond

This 0.71ct lab-grown radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG530226181 or 530226181. Listed at 15 retailers as of October 29, 2026, with prices from £90 to £1,034, a £944 spread on the same certified stone. MOH London lists it at £1,034. 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

0.71
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530226181
Dimensions6.42 × 4.35 × 3.06 mm
L/W Ratio1.48
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
6.42 mm4.35 mm0.71 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG530226181
Side View
Table 64.5%Crown 38.6°Girdle: MED-STKPavilion 37.9°Culet: NoneDepth 70.3%

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: Nov 2
Current: £1,034 GBP|Low: £87 GBP|High: £1,041 GBP|Avg: £300 GBP|-0.5%
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 31, 2026
Retailer 9£90 GBP
Retailer 3£101 GBP
Retailer 13£104 GBP
Retailer 10£119 GBP
Retailer 14£119 GBP
Retailer 12£215 GBP
Retailer 6£242 GBP
Retailer 7£268 GBP
Retailer 4£273 GBP
Retailer 2£291 GBP
Retailer 11£396 GBP
Retailer 8£400 GBP
Retailer 5£479 GBP
MOH London£1,034 GBP

23 data points across 14 retailers

15 retailers£90 GBP to £1,034 GBP

A
Cheapest Retailer
-
£90 GBP
$121 USD
A
Retailer 2
-
£101 GBP
$135 USD
View
Final sale: no returns
A
Retailer 3
-
£104 GBP
$140 USD
View
Retailer 4
-
£119 GBP
$159 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£119 GBP
$159 USD
View
B+
Retailer 6
-
£215 GBP
$288 USD
View
B+
Retailer 7
-
£268 GBP
View
B+
Retailer 8
-
£273 GBP
$366 USD
View
B+
Retailer 9
-
£291 GBP
$390 USD
View
B+
Retailer 10
-
£348 GBP
View
B
Retailer 11
-
£396 GBP
$531 USD
View
B
Retailer 12
-
£400 GBP
$536 USD
View
B
Retailer 13
-
£403 GBP
View
C
Retailer 14
-
£1,008 GBP
$1,350 USD
View
Most Expensive
B
MOH London
LG530226181 · Oct 29
£1,034 GBP
View
14 more retailers have this diamond
Prices start from £90 GBPSave up to £944 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 Radiant
£90 GBP