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Cushion|Lab Grown|IGI

1.55ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG675561655

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

Certificate IGI LG675561655

Diamond specifications and retailer prices

From €425 EUR
As of November 3, 2026
Save €1,267 EUR (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,693 EUR at Brilliant Earth · As of November 3, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG675561655 or 675561655. Listed at 16 retailers as of November 3, 2026, with prices from €425 to €1,693, a €1,267 spread on the same certified stone. Brilliant Earth lists it at €1,693. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675561655
Dimensions6.80 × 6.61 × 4.32 mm
L/W Ratio1.03
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
6.80 mm6.61 mm1.55 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675561655
Side View
Table 63.0%Crown 35°Girdle: MED-THKPavilion 38.2°Culet: NoneDepth 65.4%

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 3
Current: €1,693 EUR|Low: €278 EUR|High: €1,782 EUR|Avg: €710 EUR|-5.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 12€278 EUR
Retailer 3€326 EUR
Retailer 10€425 EUR
Retailer 5€465 EUR
Retailer 9€465 EUR
Retailer 8€479 EUR
Retailer 6€516 EUR
Retailer 7€528 EUR
Retailer 11€648 EUR
Retailer 2€729 EUR
Retailer 14€936 EUR
Retailer 4€1,094 EUR
Retailer 13€1,120 EUR
Brilliant Earth€1,693 EUR

40 data points across 14 retailers

16 retailers€425 EUR to €1,693 EUR

Retailer 1
-
€278 EUR
Price last confirmed 13 days ago
A
Retailer 2
-
€425 EUR
View
A
Retailer 3
-
€465 EUR
View
A
Retailer 4
-
€465 EUR
View
A
Retailer 5
-
€479 EUR
View
A
Retailer 6
-
€488 EUR
View
A
Retailer 7
-
€516 EUR
View
A
Retailer 8
-
€528 EUR
View
Retailer 9
-
€648 EUR
View
Price last confirmed 11 days ago
B+
Retailer 10
-
€729 EUR
View
B+
Retailer 11
-
€857 EUR
View
Retailer 12
-
€936 EUR
View
Price last confirmed 19 days ago
B+
Retailer 13
-
€940 EUR
View
B
Retailer 14
-
€1,094 EUR
View
Retailer 15
-
€1,120 EUR
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
14978783A · Nov 3
€1,693 EUR
$1,890 USD
View
15 more retailers have this diamond
Prices start from €425 EURSave up to €1,267 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
€425 EUR