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Cushion|Lab Grown|IGI

1.28ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG790683937

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG790683937

Diamond specifications and retailer prices

From $1,518 SGD
$1,187 USD
As of November 1, 2026
Save $4,652 SGD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,170 SGD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 top-tier cut grade and certified by IGI LG790683937 or 790683937. Listed at 13 retailers as of October 31, 2026, with prices from $1,518 to $6,170, a $4,652 spread on the same certified stone. Taylor and Hart lists it at $6,170. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790683937
Dimensions7.82 × 5.78 × 3.53 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
7.82 mm5.78 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790683937
Side View
Table 58.0%Crown 37.4°Girdle: MED-THKPavilion 38.5°Culet: LargeDepth 61.1%

Caratlytics Score

How it works →
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: Nov 1
Current: $1,700 SGD|Low: $1,458 SGD|High: $5,735 SGD|Avg: $2,678 SGD|-17.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9$1,518 SGD
Retailer 3$1,652 SGD
Retailer 1$1,700 SGD
Retailer 2$1,761 SGD
Retailer 10$1,761 SGD
Retailer 7$1,982 SGD
Retailer 8$2,519 SGD
Retailer 6$2,555 SGD
Retailer 12$3,301 SGD
Retailer 11$3,374 SGD
Retailer 4$4,249 SGD
Retailer 5$5,659 SGD

42 data points across 12 retailers

13 retailers$1,518 SGD to $6,170 SGD

A
Cheapest Retailer
-
$1,518 SGD
$1,187 USD
B+
Retailer 2
-
$1,652 SGD
$1,292 USD
View
B+
Retailer 3
-
$1,700 SGD
$1,329 USD
View
Final sale: no returns
Retailer 4
-
$1,761 SGD
$1,377 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$1,761 SGD
$1,377 USD
View
B+
Retailer 6
-
$1,982 SGD
$1,550 USD
View
B+
Retailer 7
-
$2,519 SGD
$1,970 USD
View
B+
Retailer 8
-
$2,555 SGD
£1,573 GBP
View
B
Retailer 9
-
$3,301 SGD
$2,581 USD
View
B
Retailer 10
-
$3,374 SGD
$2,638 USD
View
B
Retailer 11
-
$4,249 SGD
£2,616 GBP
View
B
Retailer 12
-
$5,659 SGD
£3,484 GBP
View
Most Expensive
B
Taylor and Hart
3KZQ333 · Oct 31
$6,170 SGD
$4,824 USD
View
12 more retailers have this diamond
Prices start from $1,518 SGDSave up to $4,652 SGD

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
$1,518 SGD