Cushion|Lab Grown|IGI

1.28ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG800684844

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800684844

Diamond specifications and retailer prices

From $438 USD
As of October 30, 2026
Save $2,722 USD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,160 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG800684844 or 800684844. Listed at 12 retailers as of October 30, 2026, with prices from $438 to $3,160, a $2,722 spread on the same certified stone. Do Amore Diamonds lists it at $3,160. 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

1.28
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800684844
Dimensions7.00 × 5.85 × 4.06 mm
L/W Ratio1.20
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
7.00 mm5.85 mm1.28 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800684844
Side View
Table 61.0%Crown 35.2°Girdle: STK-THKPavilion 38°Culet: NoneDepth 69.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,160 USD|Low: $438 USD|High: $3,410 USD|Avg: $1,362 USD|-7.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$438 USD
Retailer 5$597 USD
Retailer 8$655 USD
Retailer 9$706 USD
Retailer 6$708 USD
Retailer 2$820 USD
Retailer 7$1,905 USD
Retailer 4$1,908 USD
Retailer 3$2,380 USD
Do Amore Diamonds$3,160 USD

29 data points across 10 retailers

12 retailers$438 USD to $3,160 USD

A
Cheapest Retailer
-
$438 USD
Final sale: no returns
A
Retailer 2
-
$597 USD
View
A
Retailer 3
-
$655 USD
View
A
Retailer 4
-
$706 USD
View
A
Retailer 5
-
$708 USD
View
A
Retailer 6
-
$820 USD
€781 EUR
View
Retailer 7
-
$1,380 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$1,635 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$1,905 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$1,908 USD
£1,502 GBP
View
B
Retailer 11
-
$2,380 USD
View
Most Expensive
B
Do Amore Diamonds
27-026309141 · Oct 31
$3,160 USD
View
11 more retailers have this diamond
Prices start from $438 USDSave up to $2,722 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
1.28ct Cushion
$438 USD