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Cushion|Lab Grown|IGI

3.01ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG750529174

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG750529174

Diamond specifications and retailer prices

From £546 GBP
As of November 6, 2026
Save £914 GBP (63%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,461 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.01ct lab-grown cushion diamond

This 3.01ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG750529174 or 750529174. Listed at 6 retailers as of November 1, 2026, with prices from £546 to £1,461, a £914 spread on the same certified stone. Rare Carat lists it at £1,461. 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

3.01
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750529174
Dimensions8.48 × 8.42 × 5.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.48 mm8.42 mm3.01 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750529174
Side View
Table 57.0%Crown 33.9°Girdle: MED-THKPavilion 34.4°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
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: Nov 6
Current: £1,461 GBP|Low: £527 GBP|High: £1,512 GBP|Avg: £942 GBP|-3.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4£546 GBP
Retailer 5£575 GBP
Retailer 3£610 GBP
Retailer 6£1,112 GBP
Retailer 2£1,327 GBP
Rare Carat£1,461 GBP

44 data points across 6 retailers

6 retailers£546 GBP to £1,461 GBP

B+
Cheapest Retailer
-
£546 GBP
B+
Retailer 2
-
£575 GBP
View
A
Retailer 3
-
£610 GBP
View
B
Retailer 4
-
£1,112 GBP
View
B
Retailer 5
-
£1,327 GBP
View
Most Expensive
B
Rare Carat
446-1D_l_750529174 · Nov 1
£1,461 GBP
$1,955 USD
View
5 more retailers have this diamond
Prices start from £546 GBPSave up to £914 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
3.01ct Cushion
£546 GBP