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Cushion|Lab Grown|IGI

1.17ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG830620366

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620366

Diamond specifications and retailer prices

From €309 EUR
As of November 4, 2026
Save €1,338 EUR (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,647 EUR at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.17ct lab-grown cushion diamond

This 1.17ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG830620366 or 830620366. Listed at 16 retailers as of November 4, 2026, with prices from €309 to €1,647, a €1,338 spread on the same certified stone. Helzberg Diamonds lists it at €1,647. 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

1.17
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620366
Dimensions7.90 × 5.26 × 3.49 mm
L/W Ratio1.50
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
7.90 mm5.26 mm1.17 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620366
Side View
Table 61.0%Crown 34.5°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 66.3%

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 4
Current: €1,647 EUR|Low: €309 EUR|High: €1,647 EUR|Avg: €825 EUR
Helzberg Diamonds
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
Retailer 15
November 5, 2026
Retailer 6€309 EUR
Retailer 9€351 EUR
Retailer 8€479 EUR
Retailer 15€519 EUR
Retailer 14€555 EUR
Retailer 4€556 EUR
Retailer 12€589 EUR
Retailer 5€662 EUR
Retailer 10€841 EUR
Retailer 11€850 EUR
Retailer 2€882 EUR
Retailer 7€1,140 EUR
Retailer 13€1,369 EUR
Retailer 3€1,553 EUR
Helzberg Diamonds€1,647 EUR

11 data points across 15 retailers

16 retailers€309 EUR to €1,647 EUR

A
Cheapest Retailer
-
€309 EUR
Final sale: no returns
A
Retailer 2
-
€351 EUR
View
A
Retailer 3
-
€479 EUR
View
A
Retailer 4
-
€519 EUR
View
A
Retailer 5
-
€555 EUR
View
A
Retailer 6
-
€556 EUR
View
A
Retailer 7
-
€589 EUR
View
A
Retailer 8
-
€662 EUR
View
B+
Retailer 9
-
€841 EUR
View
B+
Retailer 10
-
€850 EUR
View
B+
Retailer 11
-
€882 EUR
View
B+
Retailer 12
-
€1,140 EUR
View
B
Retailer 13
-
€1,369 EUR
View
B
Retailer 14
-
€1,447 EUR
View
B
Retailer 15
-
€1,553 EUR
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGJMM · Nov 4
€1,647 EUR
$1,856 USD
View
15 more retailers have this diamond
Prices start from €309 EURSave up to €1,338 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
1.17ct Cushion
€309 EUR