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Cushion|Lab Grown|IGI

1.28ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG700586850

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

Certificate IGI LG700586850

Diamond specifications and retailer prices

From €231 EUR
$258 USD
As of October 31, 2026
Save €924 EUR (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,155 EUR at Reve Diamonds · As of October 30, 2026
View at Reve 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG700586850 or 700586850. Listed at 15 retailers as of October 30, 2026, with prices from €231 to €1,155, a €924 spread on the same certified stone. Reve Diamonds lists it at €1,155. 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
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700586850
Dimensions6.28 × 6.27 × 4.17 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.28 mm6.27 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700586850
Side View
Table 61.0%Crown 36.1°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 66.5%

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 31
Current: €394 EUR|Low: €208 EUR|High: €1,226 EUR|Avg: €624 EUR|+1.0%
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
Reve Diamonds
October 31, 2026
Retailer 4€231 EUR
Retailer 13€343 EUR
Retailer 1€394 EUR
Retailer 5€433 EUR
Retailer 11€439 EUR
Retailer 2€467 EUR
Retailer 7€478 EUR
Retailer 14€541 EUR
Retailer 12€623 EUR
Retailer 10€649 EUR
Retailer 6€711 EUR
Retailer 3€868 EUR
Retailer 8€1,011 EUR
Retailer 9€1,030 EUR
Reve Diamonds€1,155 EUR

37 data points across 15 retailers

15 retailers€231 EUR to €1,155 EUR

A
Cheapest Retailer
-
€231 EUR
$258 USD
Final sale: no returns
Retailer 2
-
€343 EUR
£302 GBP
View
Price last confirmed 16 days ago
A
Retailer 3
-
€394 EUR
View
A
Retailer 4
-
€433 EUR
$484 USD
View
A
Retailer 5
-
€439 EUR
ZAR 7,924 ZAR
View
A
Retailer 6
-
€467 EUR
$522 USD
View
B+
Retailer 7
-
€478 EUR
£421 GBP
View
B+
Retailer 8
-
€541 EUR
$604 USD
View
B+
Retailer 9
-
€623 EUR
A$1,071 AUD
View
B+
Retailer 10
-
€649 EUR
$725 USD
View
B+
Retailer 11
-
€711 EUR
$794 USD
View
B
Retailer 12
-
€868 EUR
$970 USD
View
B
Retailer 13
-
€1,011 EUR
$1,130 USD
View
B
Retailer 14
-
€1,030 EUR
£906 GBP
View
Most Expensive
B
Reve Diamonds
06581FF03 · Oct 30
€1,155 EUR
$1,290 USD
View
14 more retailers have this diamond
Prices start from €231 EURSave up to €924 EUR

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
€231 EUR