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Cushion|Lab Grown|IGI

1.05ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG596345557

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG596345557

Diamond specifications and retailer prices

From €170 EUR
$190 USD
As of October 30, 2026
Save €715 EUR (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €886 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG596345557 or 596345557. Listed at 9 retailers as of October 30, 2026, with prices from €170 to €886, a €715 spread on the same certified stone. MOH London lists it at €886. 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

1.05
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG596345557
Dimensions7.05 × 5.30 × 3.66 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
7.05 mm5.30 mm1.05 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG596345557
Side View
Table 66.0%Crown 36.5°Girdle: MED-THKPavilion 37.4°Culet: NoneDepth 69.1%

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: Oct 30
Current: €886 EUR|Low: €170 EUR|High: €897 EUR|Avg: €430 EUR|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6€170 EUR
Retailer 7€312 EUR
Retailer 2€338 EUR
Retailer 5€339 EUR
Retailer 4€474 EUR
Retailer 3€483 EUR
Retailer 8€532 EUR
MOH London€886 EUR

26 data points across 8 retailers

9 retailers€170 EUR to €886 EUR

A
Cheapest Retailer
-
€170 EUR
$190 USD
Final sale: no returns
B+
Retailer 2
-
€312 EUR
$349 USD
View
Retailer 3
-
€331 EUR
£291 GBP
View
Price last confirmed 18 days ago
B+
Retailer 4
-
€338 EUR
£297 GBP
View
B+
Retailer 5
-
€339 EUR
$379 USD
View
B+
Retailer 6
-
€474 EUR
$529 USD
View
Retailer 7
-
€483 EUR
$540 USD
View
Price last confirmed 13 days ago
B
Retailer 8
-
€658 EUR
$735 USD
View
Most Expensive
B
MOH London
LG596345557 · Nov 1
€886 EUR
£779 GBP
View
8 more retailers have this diamond
Prices start from €170 EURSave up to €715 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
1.05ct Cushion
€170 EUR