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Radiant|Lab Grown|IGI

0.74ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG12667403

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

Certificate IGI LG12667403

Diamond specifications and retailer prices

From £120 GBP
$161 USD
As of October 30, 2026
Save £1,037 GBP (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,157 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 0.74ct lab-grown radiant diamond

This 0.74ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG12667403 or 12667403. Listed at 10 retailers as of October 30, 2026, with prices from £120 to £1,157, a £1,037 spread on the same certified stone. Do Amore Diamonds lists it at £1,157. 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

0.74
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.2°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12667403
Dimensions6.03 × 4.61 × 3.23 mm
L/W Ratio1.31
Culet sizePointed
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process.
Top View
6.03 mm4.61 mm0.74 ctD / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG12667403
Side View
Table 64.0%Crown 38.2°Girdle: STK-THKPavilion 34.7°Culet: NoneDepth 70.1%

Caratlytics Score

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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 30
Current: £343 GBP|Low: £96 GBP|High: £778 GBP|Avg: £388 GBP|-27.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4£120 GBP
Retailer 9£134 GBP
Retailer 8£140 GBP
Retailer 6£270 GBP
Retailer 1£343 GBP
Retailer 3£506 GBP
Retailer 5£529 GBP
Retailer 7£546 GBP
Retailer 2£773 GBP

18 data points across 9 retailers

10 retailers£120 GBP to £1,157 GBP

A
Cheapest Retailer
-
£120 GBP
$161 USD
A
Retailer 2
-
£134 GBP
$180 USD
View
Final sale: no returns
A
Retailer 3
-
£140 GBP
$187 USD
View
B+
Retailer 4
-
£270 GBP
$362 USD
View
B+
Retailer 5
-
£343 GBP
$460 USD
View
B
Retailer 6
-
£506 GBP
$678 USD
View
B
Retailer 7
-
£529 GBP
$709 USD
View
B
Retailer 8
-
£546 GBP
$731 USD
View
B
Retailer 9
-
£773 GBP
View
Most Expensive
C
Do Amore Diamonds
27-C6C664D9D · Oct 31
£1,157 GBP
$1,550 USD
View
9 more retailers have this diamond
Prices start from £120 GBPSave up to £1,037 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
0.74ct Radiant
£120 GBP