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Cushion|Lab Grown|IGI

1.55ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG849662170

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

Certificate IGI LG849662170

Diamond specifications and retailer prices

From €498 EUR
$556 USD
As of November 1, 2026
Save €2,644 EUR (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,142 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG849662170 or 849662170. Listed at 12 retailers as of October 31, 2026, with prices from €498 to €3,142, a €2,644 spread on the same certified stone. Brilliant Earth lists it at €3,142. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849662170
Dimensions6.78 × 6.75 × 4.36 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.78 mm6.75 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849662170
Side View
Table 62.0%Crown 36.9°Girdle: THN-STKPavilion 37.7°Culet: NoneDepth 64.6%

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: Nov 1
Current: €3,142 EUR|Low: €498 EUR|High: €3,142 EUR|Avg: €1,260 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11€498 EUR
Retailer 6€583 EUR
Retailer 4€607 EUR
Retailer 8€676 EUR
Retailer 10€738 EUR
Retailer 7€824 EUR
Retailer 2€909 EUR
Retailer 12€1,283 EUR
Retailer 3€1,744 EUR
Retailer 9€1,920 EUR
Retailer 5€2,300 EUR
Brilliant Earth€3,142 EUR

6 data points across 12 retailers

12 retailers€498 EUR to €3,142 EUR

A
Cheapest Retailer
-
€498 EUR
$556 USD
Final sale: no returns
A
Retailer 2
-
€583 EUR
£513 GBP
View
A
Retailer 3
-
€607 EUR
HK$5,300 HKD
View
A
Retailer 4
-
€676 EUR
$755 USD
View
A
Retailer 5
-
€738 EUR
$825 USD
View
A
Retailer 6
-
€824 EUR
View
A
Retailer 7
-
€909 EUR
£800 GBP
View
B+
Retailer 8
-
€1,283 EUR
A$2,205 AUD
View
B+
Retailer 9
-
€1,744 EUR
SGD 2,633 SGD
View
B+
Retailer 10
-
€1,920 EUR
$2,145 USD
View
B
Retailer 11
-
€2,300 EUR
£2,023 GBP
View
Most Expensive
B
Brilliant Earth
22341190A · Oct 31
€3,142 EUR
$3,510 USD
View
11 more retailers have this diamond
Prices start from €498 EURSave up to €2,644 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
1.55ct Cushion
€498 EUR