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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG794641717

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

Certificate IGI LG794641717

Diamond specifications and retailer prices

From $376 SGD
$294 USD
As of November 1, 2026
Save $1,244 SGD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,033 SGD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG794641717 or 794641717. Listed at 17 retailers as of November 1, 2026, with a 331% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794641717
Dimensions6.35 × 6.31 × 4.12 mm
L/W Ratio1.01
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
6.35 mm6.31 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794641717
Side View
Table 63.0%Crown 33.6°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 65.3%

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: Nov 1
Current: $403 SGD|Low: $315 SGD|High: $1,620 SGD|Avg: $840 SGD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 7$349 SGD
Retailer 10$376 SGD
Retailer 1$403 SGD
Retailer 12$579 SGD
Retailer 15$602 SGD
Retailer 9$610 SGD
Retailer 8$659 SGD
Retailer 14$827 SGD
Retailer 6$853 SGD
Retailer 13$948 SGD
Retailer 4$1,204 SGD
Retailer 5$1,335 SGD
Retailer 3$1,384 SGD
Retailer 11$1,416 SGD
Retailer 2$1,620 SGD

26 data points across 15 retailers

17 retailers$376 SGD to $1,620 SGD

Retailer 1
-
$349 SGD
$273 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$376 SGD
$294 USD
View
Final sale: no returns
A
Retailer 3
-
$403 SGD
£248 GBP
View
A
Retailer 4
-
$579 SGD
€431 EUR
View
A
Retailer 5
-
$602 SGD
$471 USD
View
A
Retailer 6
-
$610 SGD
ZAR 7,711 ZAR
View
A
Retailer 7
-
$659 SGD
£405 GBP
View
B+
Retailer 8
-
$827 SGD
$647 USD
View
A
Retailer 9
-
$853 SGD
A$1,026 AUD
View
B+
Retailer 10
-
$948 SGD
$741 USD
View
B+
Retailer 11
-
$1,204 SGD
$941 USD
View
B+
Retailer 12
-
$1,335 SGD
A$1,606 AUD
View
B
Retailer 13
-
$1,384 SGD
£852 GBP
View
B+
Retailer 14
-
$1,416 SGD
£872 GBP
View
Retailer 15
-
$1,563 SGD
$1,222 USD
View
Price last confirmed 113 days ago
B
Retailer 16
-
$1,620 SGD
$1,267 USD
View
Most Expensive
Brilliant Earth
19355098A · Oct 24
$2,033 SGD
$1,590 USD
View
Price last confirmed 9 days ago
16 more retailers have this diamond
Prices start from $376 SGDSave up to $1,244 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
$376 SGD