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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 $731 USD
As of October 30, 2026
Save $1,065 USD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,955 USD at Rare Carat · As of October 21, 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 October 29, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,955 USD|Low: $706 USD|High: $2,024 USD|Avg: $1,253 USD|-3.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4$731 USD
Retailer 5$770 USD
Retailer 2$826 USD
Retailer 6$1,488 USD
Retailer 3$1,796 USD
Rare Carat$1,955 USD

42 data points across 6 retailers

6 retailers$731 USD to $1,796 USD

B+
Cheapest Retailer
-
$731 USD
B+
Retailer 2
-
$770 USD
View
A
Retailer 3
-
$826 USD
£650 GBP
View
B
Retailer 4
-
$1,488 USD
View
B
Retailer 5
-
$1,796 USD
£1,414 GBP
View
Most Expensive
Rare Carat
446-1D_l_750529174 · Oct 21
$1,955 USD
View
Price last confirmed 10 days ago
5 more retailers have this diamond
Prices start from $731 USDSave up to $1,065 USD

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
$731 USD