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Cushion|Lab Grown|IGI

1.00ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG758568453

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG758568453

Diamond specifications and retailer prices

From $280 USD
€267 EUR
As of October 31, 2026
Save $320 USD (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,318 USD at MOH London · As of October 8, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG758568453 or 758568453. Listed at 7 retailers as of October 31, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle43.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758568453
Dimensions5.95 × 5.78 × 4.00 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.95 mm5.78 mm1.00 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758568453
Side View
Table 66.0%Crown 33.9°Girdle: MED-STKPavilion 43.3°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: $1,318 USD|Low: $75 USD|High: $1,466 USD|Avg: $621 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 4$75 USD
Retailer 2$280 USD
Retailer 12$307 USD
Retailer 7$316 USD
Retailer 6$383 USD
Retailer 11$403 USD
Retailer 5$520 USD
Retailer 3$600 USD
Retailer 8$1,085 USD
MOH London$1,318 USD
Retailer 10$1,420 USD
Retailer 9$1,466 USD

13 data points across 12 retailers

7 retailers$280 USD to $600 USD

A
Cheapest Retailer
-
$280 USD
€267 EUR
Retailer 2
-
$307 USD
£241 GBP
View
Price last confirmed 23 days ago
A
Retailer 3
-
$316 USD
View
B+
Retailer 4
-
$383 USD
View
Retailer 5
-
$520 USD
View
Price last confirmed 13 days ago
B
Retailer 6
-
$600 USD
View
Most Expensive
MOH London
LG758568453 · Oct 8
$1,318 USD
£1,038 GBP
View
Price last confirmed 23 days ago
6 more retailers have this diamond
Prices start from $280 USDSave up to $320 USD

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
1.00ct Cushion
$280 USD