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Cushion|Lab Grown|IGI

1.00ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG560245998

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG560245998

Diamond specifications and retailer prices

From $134 USD
As of November 1, 2026
Save $1,257 USD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,391 USD 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG560245998 or 560245998. Listed at 12 retailers as of October 29, 2026, with prices from $134 to $1,391, a $1,257 spread on the same certified stone. MOH London lists it at $1,391. 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

1.00
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle29.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG560245998
Dimensions6.40 × 5.27 × 3.32 mm
L/W Ratio1.21
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
6.40 mm5.27 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG560245998
Side View
Table 63.5%Crown 40.6°Girdle: MED-STKPavilion 29.2°Culet: NoneDepth 63.0%

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: $1,391 USD|Low: $134 USD|High: $1,391 USD|Avg: $490 USD|+46.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$134 USD
Retailer 4$184 USD
Retailer 11$206 USD
Retailer 12$239 USD
Retailer 2$280 USD
Retailer 5$315 USD
Retailer 8$398 USD
Retailer 6$411 USD
Retailer 3$708 USD
Retailer 10$946 USD
Retailer 9$1,360 USD
MOH London$1,391 USD

40 data points across 12 retailers

12 retailers$134 USD to $1,391 USD

A
Cheapest Retailer
-
$134 USD
Final sale: no returns
B+
Retailer 2
-
$206 USD
View
A
Retailer 3
-
$239 USD
View
A
Retailer 4
-
$280 USD
£220 GBP
View
Retailer 5
-
$307 USD
HK$2,400 HKD
View
Price last confirmed 59 days ago
A
Retailer 6
-
$315 USD
£248 GBP
View
B+
Retailer 7
-
$398 USD
View
A
Retailer 8
-
$411 USD
View
B
Retailer 9
-
$708 USD
View
B
Retailer 10
-
$946 USD
View
B
Retailer 11
-
$1,360 USD
View
Most Expensive
B
MOH London
LG560245998 · Oct 29
$1,391 USD
£1,095 GBP
View
11 more retailers have this diamond
Prices start from $134 USDSave up to $1,257 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
$134 USD