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Cushion|Lab Grown|IGI

1.70ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG12380810

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12380810

Diamond specifications and retailer prices

From €224 EUR
$250 USD
As of October 31, 2026
Save €1,674 EUR (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €1,898 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.7ct lab-grown cushion diamond

This 1.7ct 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 very-good cut grade and certified by IGI LG12380810 or 12380810. Listed at 6 retailers as of October 31, 2026, with prices from €224 to €1,898, a €1,674 spread on the same certified stone. Do Amore Diamonds lists it at €1,898. 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

1.70
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.5°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12380810
Dimensions6.84 × 6.49 × 4.49 mm
L/W Ratio1.05
Culet sizePointed
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process.
Top View
6.84 mm6.49 mm1.70 ctD / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG12380810
Side View
Table 57.0%Crown 33.5°Girdle: STK-UNDPavilion 35.7°Culet: NoneDepth 69.2%

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: Oct 31
Current: €1,898 EUR|Low: €140 EUR|High: €1,915 EUR|Avg: €834 EUR|+7.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 4€224 EUR
Retailer 3€419 EUR
Retailer 8€463 EUR
Retailer 7€525 EUR
Retailer 6€592 EUR
Retailer 10€687 EUR
Retailer 2€1,089 EUR
Retailer 9€1,128 EUR
Retailer 5€1,352 EUR
Do Amore Diamonds€1,898 EUR

13 data points across 10 retailers

6 retailers€224 EUR to €1,898 EUR

A
Cheapest Retailer
-
€224 EUR
$250 USD
Final sale: no returns
B+
Retailer 2
-
€419 EUR
$468 USD
View
B
Retailer 3
-
€1,089 EUR
£958 GBP
View
B
Retailer 4
-
€1,128 EUR
$1,260 USD
View
B
Retailer 5
-
€1,352 EUR
$1,510 USD
View
Most Expensive
B
Do Amore Diamonds
27-9906E570A · Oct 31
€1,898 EUR
$2,120 USD
View
5 more retailers have this diamond
Prices start from €224 EURSave up to €1,674 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
1.70ct Cushion
€224 EUR