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Cushion|Lab Grown|IGI

1.43ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG462166997

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

Certificate IGI LG462166997

Diamond specifications and retailer prices

From $388 USD
As of October 25, 2026
Save $1,302 USD (77%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,690 USD at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.43ct lab-grown cushion diamond

This 1.43ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG462166997 or 462166997. Listed at 4 retailers as of October 25, 2026, with prices from $388 to $1,690, a $1,302 spread on the same certified stone. Do Amore Diamonds lists it at $1,690. 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

1.43
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.7°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG462166997
Dimensions6.34 × 6.26 × 4.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.34 mm6.26 mm1.43 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG462166997
Side View
Table 59.5%Crown 34.7°Girdle: STK-VTKPavilion 39.2°Culet: NoneDepth 70.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $1,690 USD|Low: $149 USD|High: $1,690 USD|Avg: $732 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 25, 2026
Retailer 5$197 USD
Retailer 4$388 USD
Retailer 8$452 USD
Retailer 9$544 USD
Retailer 6$598 USD
Retailer 7$795 USD
Retailer 3$870 USD
Retailer 2$1,128 USD
Do Amore Diamonds$1,690 USD

10 data points across 9 retailers

4 retailers$388 USD to $1,690 USD

B+
Cheapest Retailer
-
$388 USD
Retailer 2
-
$870 USD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$1,128 USD
£888 GBP
View
Most Expensive
B
Do Amore Diamonds
27-CED8CC6D9 · Oct 27
$1,690 USD
View
3 more retailers have this diamond
Prices start from $388 USDSave up to $1,302 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.

B+
1.43ct Cushion
$388 USD