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Cushion|Lab Grown|IGI

1.59ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG693553609

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG693553609

Diamond specifications and retailer prices

From €368 EUR
$411 USD
As of November 1, 2026
Save €706 EUR (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,074 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.59ct lab-grown cushion diamond

This 1.59ct 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 LG693553609 or 693553609. Listed at 9 retailers as of October 31, 2026, with prices from €368 to €1,074, a €706 spread on the same certified stone. Brilliant Earth lists it at €1,074. 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

1.59
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.3°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG693553609
Dimensions8.02 × 6.31 × 4.23 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.02 mm6.31 mm1.59 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG693553609
Side View
Table 64.0%Crown 29.3°Girdle: MED-STKPavilion 42.4°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,074 EUR|Low: €209 EUR|High: €1,217 EUR|Avg: €553 EUR|-11.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6€209 EUR
Retailer 5€235 EUR
Retailer 7€368 EUR
Retailer 4€368 EUR
Retailer 3€381 EUR
Retailer 9€477 EUR
Retailer 8€511 EUR
Retailer 2€980 EUR
Brilliant Earth€1,074 EUR

35 data points across 9 retailers

9 retailers€368 EUR to €1,074 EUR

Retailer 1
-
€209 EUR
$234 USD
Price last confirmed 20 days ago
Retailer 2
-
€235 EUR
£206 GBP
View
Price last confirmed 16 days ago
B+
Retailer 3
-
€368 EUR
$411 USD
View
A
Retailer 4
-
€368 EUR
View
A
Retailer 5
-
€381 EUR
£335 GBP
View
A
Retailer 6
-
€477 EUR
$533 USD
View
A
Retailer 7
-
€511 EUR
$571 USD
View
B
Retailer 8
-
€980 EUR
£862 GBP
View
Most Expensive
B
Brilliant Earth
13584838A · Oct 31
€1,074 EUR
$1,200 USD
View
8 more retailers have this diamond
Prices start from €368 EURSave up to €706 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
1.59ct Cushion
€368 EUR