CaratHunter
Plans
Cushion|Lab Grown|IGI

1.39ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG494172710

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG494172710

Diamond specifications and retailer prices

From $653 USD
As of October 29, 2026
Save $1,389 USD (68%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,042 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.39ct lab-grown cushion diamond

This 1.39ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG494172710 or 494172710. Listed at 6 retailers as of October 26, 2026, with prices from $653 to $2,042, a $1,389 spread on the same certified stone. MOH London lists it at $2,042. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.39
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494172710
Dimensions6.89 × 5.82 × 4.07 mm
L/W Ratio1.18
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
6.89 mm5.82 mm1.39 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494172710
Side View
Table 60.5%Crown 36.5°Girdle: MED-VTKPavilion 36°Culet: NoneDepth 69.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,042 USD|Low: $653 USD|High: $2,064 USD|Avg: $1,103 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6$653 USD
Retailer 3$849 USD
Retailer 5$871 USD
Retailer 2$918 USD
Retailer 4$1,010 USD
Retailer 7$1,487 USD
MOH London$2,042 USD

41 data points across 7 retailers

6 retailers$653 USD to $2,042 USD

B+
Cheapest Retailer
-
$653 USD
B+
Retailer 2
-
$849 USD
€809 EUR
View
B
Retailer 3
-
$871 USD
View
B
Retailer 4
-
$918 USD
£723 GBP
View
Retailer 5
-
$1,010 USD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
LG494172710 · Oct 26
$2,042 USD
£1,608 GBP
View
5 more retailers have this diamond
Prices start from $653 USDSave up to $1,389 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.

B+
1.39ct Cushion
$653 USD