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Cushion|Lab Grown|IGI

1.00ct D SI2 Cushion Lab Grown Diamond

GD • D/SI2 • IGI LG500148231

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG500148231

Diamond specifications and retailer prices

From €206 EUR
$230 USD
As of October 30, 2026
Save €797 EUR (79%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €1,003 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG500148231 or 500148231. Listed at 6 retailers as of October 29, 2026, with prices from €206 to €1,003, a €797 spread on the same certified stone. MOH London lists it at €1,003. 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

1.00
Carat
D
Color
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle29.1°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500148231
Dimensions6.19 × 5.65 × 3.42 mm
L/W Ratio1.10
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
6.19 mm5.65 mm1.00 ctD / SI2
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG500148231
Side View
Table 59.0%Crown 29.1°Girdle: STK-THKPavilion 32.4°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,003 EUR|Low: €206 EUR|High: €1,009 EUR|Avg: €488 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 6€206 EUR
Retailer 4€391 EUR
Retailer 3€394 EUR
Retailer 2€464 EUR
Retailer 5€504 EUR
MOH London€1,003 EUR

41 data points across 6 retailers

6 retailers€206 EUR to €1,003 EUR

B+
Cheapest Retailer
-
€206 EUR
$230 USD
B+
Retailer 2
-
€391 EUR
$437 USD
View
B+
Retailer 3
-
€394 EUR
$440 USD
View
B
Retailer 4
-
€464 EUR
£408 GBP
View
B
Retailer 5
-
€504 EUR
$563 USD
View
Most Expensive
C
MOH London
LG500148231 · Oct 29
€1,003 EUR
£882 GBP
View
5 more retailers have this diamond
Prices start from €206 EURSave up to €797 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.

B+
1.00ct Cushion
€206 EUR