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Cushion|Lab Grown|IGI

1.31ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG839684864

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG839684864

Diamond specifications and retailer prices

From $362 USD
As of October 29, 2026
Save $2,368 USD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,730 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.31ct lab-grown cushion diamond

This 1.31ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG839684864 or 839684864. Listed at 19 retailers as of October 29, 2026, with prices from $362 to $2,730, a $2,368 spread on the same certified stone. Do Amore Diamonds lists it at $2,730. 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

1.31
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839684864
Dimensions7.89 × 5.86 × 3.72 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizeLarge
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
7.89 mm5.86 mm1.31 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839684864
Side View
Table 56.0%Crown 37.2°Girdle: MED-STKPavilion 37.8°Culet: LargeDepth 63.5%

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: Oct 29
Current: $2,730 USD|Low: $338 USD|High: $2,730 USD|Avg: $961 USD
Do Amore Diamonds
Retailer 2
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Retailer 19
October 31, 2026
Retailer 15$362 USD
Retailer 6$406 USD
Retailer 11$420 USD
Retailer 13$420 USD
Retailer 3$449 USD
Retailer 17$600 USD
Retailer 10$665 USD
Retailer 4$716 USD
Retailer 19$748 USD
Retailer 2$814 USD
Retailer 16$1,208 USD
Retailer 14$1,280 USD
Retailer 12$1,317 USD
Retailer 9$1,349 USD
Retailer 7$1,594 USD
Retailer 8$1,704 USD
Retailer 5$1,746 USD
Retailer 18$1,947 USD
Do Amore Diamonds$2,730 USD

13 data points across 19 retailers

19 retailers$362 USD to $2,730 USD

A
Cheapest Retailer
-
$362 USD
A
Retailer 2
-
$406 USD
View
Final sale: no returns
A
Retailer 3
-
$420 USD
View
Retailer 4
-
$420 USD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$449 USD
View
A
Retailer 6
-
$600 USD
View
A
Retailer 7
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$665 USD
View
A
Retailer 8
-
$673 USD
View
A
Retailer 9
-
$716 USD
View
A
Retailer 10
-
$814 USD
£641 GBP
View
B+
Retailer 11
-
$1,208 USD
A$1,859 AUD
View
B+
Retailer 12
-
$1,280 USD
£1,008 GBP
View
B
Retailer 13
-
$1,317 USD
View
B+
Retailer 14
-
$1,349 USD
View
B
Retailer 15
-
$1,594 USD
View
B
Retailer 16
-
$1,704 USD
View
B
Retailer 17
-
$1,746 USD
View
B
Retailer 18
-
$1,947 USD
£1,533 GBP
View
Most Expensive
B
Do Amore Diamonds
20-E101170 · Oct 31
$2,730 USD
View
18 more retailers have this diamond
Prices start from $362 USDSave up to $2,368 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
1.31ct Cushion
$362 USD