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Cushion|Lab Grown|IGI

1.10ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG830603689

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

Certificate IGI LG830603689

Diamond specifications and retailer prices

From $452 USD
As of November 3, 2026
Save $1,298 USD (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,750 USD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.1ct lab-grown cushion diamond

This 1.1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830603689 or 830603689. Listed at 16 retailers as of November 3, 2026, with prices from $452 to $1,750, a $1,298 spread on the same certified stone. Brilliant Earth lists it at $1,750. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.10
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830603689
Dimensions6.00 × 5.86 × 3.96 mm
L/W Ratio1.02
Girdle conditionFaceted
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
6.00 mm5.86 mm1.10 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830603689
Side View
Table 62.0%Crown 37.5°Girdle: STK-VTKPavilion 38.4°Culet: NoneDepth 67.6%

Caratlytics Score

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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: Nov 3
Current: $1,750 USD|Low: $370 USD|High: $2,250 USD|Avg: $987 USD|-21.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 3, 2026
Retailer 8$382 USD
Retailer 4$452 USD
Retailer 14$575 USD
Retailer 13$643 USD
Retailer 3$657 USD
Retailer 15$681 USD
Retailer 11$701 USD
Retailer 2$727 USD
Retailer 7$931 USD
Retailer 10$1,037 USD
Retailer 6$1,350 USD
Retailer 16$1,530 USD
Retailer 5$1,601 USD
Retailer 9$1,628 USD
Retailer 12$1,630 USD
Brilliant Earth$1,750 USD

33 data points across 16 retailers

16 retailers$452 USD to $1,750 USD

Retailer 1
-
$382 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$452 USD
View
Final sale: no returns
A
Retailer 3
-
$575 USD
View
A
Retailer 4
-
$643 USD
€612 EUR
View
A
Retailer 5
-
$657 USD
View
A
Retailer 6
-
$681 USD
View
A
Retailer 7
-
$701 USD
ZAR 11,318 ZAR
View
A
Retailer 8
-
$727 USD
£572 GBP
View
B+
Retailer 9
-
$931 USD
A$1,432 AUD
View
B+
Retailer 10
-
$1,037 USD
View
B+
Retailer 11
-
$1,350 USD
View
B
Retailer 12
-
$1,530 USD
A$2,354 AUD
View
B
Retailer 13
-
$1,601 USD
View
B
Retailer 14
-
$1,628 USD
£1,282 GBP
View
B
Retailer 15
-
$1,630 USD
View
Most Expensive
B
Brilliant Earth
22475219A · Nov 3
$1,750 USD
View
15 more retailers have this diamond
Prices start from $452 USDSave up to $1,298 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
1.10ct Cushion
$452 USD