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Cushion|Lab Grown|IGI

1.01ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG793611009

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

Certificate IGI LG793611009

Diamond specifications and retailer prices

From $185 USD
As of November 1, 2026
Save $898 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,083 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.01ct lab-grown cushion diamond

This 1.01ct 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 LG793611009 or 793611009. Listed at 14 retailers as of November 1, 2026, with prices from $185 to $1,083, a $898 spread on the same certified stone. Reve Diamonds lists it at $1,083. 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

1.01
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793611009
Dimensions5.90 × 5.78 × 3.88 mm
L/W Ratio1.02
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
5.90 mm5.78 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793611009
Side View
Table 62.0%Crown 34.5°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 67.1%

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: Nov 1
Current: $185 USD|Low: $176 USD|High: $1,089 USD|Avg: $499 USD|+5.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 1, 2026
Retailer 1$185 USD
Retailer 3$207 USD
Retailer 10$326 USD
Retailer 7$349 USD
Retailer 6$364 USD
Retailer 11$368 USD
Retailer 12$390 USD
Retailer 9$522 USD
Retailer 8$550 USD
Retailer 4$600 USD
Retailer 2$714 USD
Retailer 5$959 USD
Reve Diamonds$1,083 USD

40 data points across 13 retailers

14 retailers$185 USD to $1,083 USD

A
Cheapest Retailer
-
$185 USD
Final sale: no returns
Retailer 2
-
$207 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$326 USD
View
A
Retailer 4
-
$349 USD
€332 EUR
View
A
Retailer 5
-
$364 USD
£286 GBP
View
A
Retailer 6
-
$368 USD
View
A
Retailer 7
-
$390 USD
£307 GBP
View
B+
Retailer 8
-
$522 USD
View
B
Retailer 9
-
$550 USD
View
Retailer 10
-
$579 USD
View
Price last confirmed 111 days ago
B+
Retailer 11
-
$600 USD
View
B
Retailer 12
-
$714 USD
View
B
Retailer 13
-
$959 USD
£755 GBP
View
Most Expensive
B
Reve Diamonds
EFC1AB465 · Nov 1
$1,083 USD
View
13 more retailers have this diamond
Prices start from $185 USDSave up to $898 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
1.01ct Cushion
$185 USD