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Cushion|Lab Grown|IGI

1.07ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG678583389

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG678583389

Diamond specifications and retailer prices

From €310 EUR
£272 GBP
As of November 1, 2026
Save €1,275 EUR (80%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,584 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.07ct lab-grown cushion diamond

This 1.07ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG678583389 or 678583389. Listed at 5 retailers as of October 31, 2026, with prices from €310 to €1,584, a €1,275 spread on the same certified stone. Do Amore Diamonds lists it at €1,584. 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

1.07
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678583389
Dimensions7.16 × 5.39 × 3.62 mm
L/W Ratio1.33
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
7.16 mm5.39 mm1.07 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG678583389
Side View
Table 63.0%Crown 34.3°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 67.2%

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: €1,584 EUR|Low: €310 EUR|High: €1,584 EUR|Avg: €682 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3€310 EUR
Retailer 7€320 EUR
Retailer 4€404 EUR
Retailer 5€447 EUR
Retailer 6€498 EUR
Retailer 8€804 EUR
Retailer 2€1,037 EUR
Do Amore Diamonds€1,584 EUR

31 data points across 8 retailers

5 retailers€310 EUR to €1,584 EUR

A
Cheapest Retailer
-
€310 EUR
£272 GBP
B+
Retailer 2
-
€404 EUR
$451 USD
View
B+
Retailer 3
-
€447 EUR
$499 USD
View
B
Retailer 4
-
€1,037 EUR
£912 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1675433 · Oct 31
€1,584 EUR
$1,770 USD
View
4 more retailers have this diamond
Prices start from €310 EURSave up to €1,275 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
1.07ct Cushion
€310 EUR