Cushion|Lab Grown|IGI

1.17ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG847675986

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG847675986

Diamond specifications and retailer prices

From $350 USD
£276 GBP
As of November 2, 2026
Save $1,380 USD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,730 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.17ct lab-grown cushion diamond

This 1.17ct 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 LG847675986 or 847675986. Listed at 9 retailers as of October 31, 2026, with prices from $350 to $1,730, a $1,380 spread on the same certified stone. Brilliant Earth lists it at $1,730. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.17
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.6°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847675986
Dimensions8.08 × 5.32 × 3.45 mm
L/W Ratio1.52
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
8.08 mm5.32 mm1.17 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847675986
Side View
Table 59.0%Crown 29.6°Girdle: MED-STKPavilion 37°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
A+
Exceptional
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 2
Current: $1,730 USD|Low: $350 USD|High: $2,290 USD|Avg: $1,011 USD|-24.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2$350 USD
Retailer 5$500 USD
Retailer 7$564 USD
Retailer 6$757 USD
Retailer 9$905 USD
Retailer 8$1,226 USD
Retailer 4$1,364 USD
Retailer 3$1,600 USD
Brilliant Earth$1,730 USD

6 data points across 9 retailers

9 retailers$350 USD to $1,730 USD

A+
Cheapest Retailer
-
$350 USD
£276 GBP
A
Retailer 2
-
$500 USD
View
A
Retailer 3
-
$564 USD
View
A
Retailer 4
-
$757 USD
View
A
Retailer 5
-
$905 USD
A$1,392 AUD
View
B+
Retailer 6
-
$1,226 USD
View
B+
Retailer 7
-
$1,364 USD
£1,074 GBP
View
B
Retailer 8
-
$1,600 USD
View
Most Expensive
B
Brilliant Earth
22336893A · Oct 31
$1,730 USD
View
8 more retailers have this diamond
Prices start from $350 USDSave up to $1,380 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+
1.17ct Cushion
$350 USD