CaratHunter
Plans
Cushion|Lab Grown|IGI

1.91ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG825631229

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

Certificate IGI LG825631229

Diamond specifications and retailer prices

From $1,099 USD
As of October 30, 2026
Save $3,911 USD (78%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,010 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.91ct lab-grown cushion diamond

This 1.91ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825631229 or 825631229. Listed at 6 retailers as of October 29, 2026, with prices from $1,099 to $5,010, a $3,911 spread on the same certified stone. Brilliant Earth lists it at $5,010. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825631229
Dimensions7.01 × 6.99 × 4.59 mm
L/W Ratio1.00
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
7.01 mm6.99 mm1.91 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825631229
Side View
Table 62.0%Crown 37.8°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 65.5%

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: Oct 30
Current: $5,010 USD|Low: $910 USD|High: $6,350 USD|Avg: $2,600 USD|-21.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 28, 2026
Retailer 3$1,099 USD
Retailer 2$1,145 USD
Retailer 5$1,292 USD
Retailer 4$1,612 USD
Retailer 6$3,246 USD
Brilliant Earth$5,010 USD

25 data points across 6 retailers

6 retailers$1,099 USD to $5,010 USD

A
Cheapest Retailer
-
$1,099 USD
A
Retailer 2
-
$1,145 USD
View
A
Retailer 3
-
$1,292 USD
€1,230 EUR
View
A
Retailer 4
-
$1,612 USD
View
Retailer 5
-
$3,246 USD
£2,556 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21139335A · Oct 29
$5,010 USD
View
5 more retailers have this diamond
Prices start from $1,099 USDSave up to $3,911 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
1.91ct Cushion
$1,099 USD