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Cushion|Lab Grown|IGI

1.72ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG478104352

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG478104352

Diamond specifications and retailer prices

From €472 EUR
$527 USD
As of October 30, 2026
Save €1,867 EUR (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,303 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.72ct lab-grown cushion diamond

This 1.72ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478104352 or 478104352. Listed at 11 retailers as of October 30, 2026, with a 396% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.72
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478104352
Dimensions7.28 × 6.64 × 4.58 mm
L/W Ratio1.10
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
7.28 mm6.64 mm1.72 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478104352
Side View
Table 62.0%Crown 37°Girdle: MED-THKPavilion 39.2°Culet: NoneDepth 69.0%

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: €3,303 EUR|Low: €462 EUR|High: €3,303 EUR|Avg: €1,267 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6€462 EUR
Retailer 3€567 EUR
Retailer 9€685 EUR
Retailer 8€729 EUR
Retailer 4€837 EUR
Retailer 7€1,719 EUR
Retailer 2€1,872 EUR
Retailer 5€2,339 EUR
Do Amore Diamonds€3,303 EUR

44 data points across 9 retailers

11 retailers€472 EUR to €2,339 EUR

Retailer 1
-
€462 EUR
$516 USD
Price last confirmed 7 days ago
A
Retailer 2
-
€472 EUR
$527 USD
View
A
Retailer 3
-
€567 EUR
£499 GBP
View
B+
Retailer 4
-
€591 EUR
$660 USD
View
B+
Retailer 5
-
€685 EUR
$765 USD
View
B+
Retailer 6
-
€729 EUR
$815 USD
View
B+
Retailer 7
-
€837 EUR
£736 GBP
View
B
Retailer 8
-
€1,719 EUR
$1,920 USD
View
B
Retailer 9
-
€1,872 EUR
£1,647 GBP
View
B
Retailer 10
-
€2,339 EUR
CA$3,629 CAD
View
Most Expensive
Do Amore Diamonds
27-0CD619052 · Oct 31
€3,303 EUR
$3,690 USD
View
Price under review
10 more retailers have this diamond
Prices start from €472 EURSave up to €1,867 EUR

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
1.72ct Cushion
€472 EUR