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Cushion|Lab Grown|IGI

3.80ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG689566677

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG689566677

Diamond specifications and retailer prices

From $1,788 SGD
$1,399 USD
As of October 31, 2026
Save $10,676 SGD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,464 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.8ct lab-grown cushion diamond

This 3.8ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG689566677 or 689566677. Listed at 21 retailers as of October 31, 2026, with prices from $1,788 to $12,464, a $10,676 spread on the same certified stone. Brilliant Earth lists it at $12,464. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.80
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689566677
Dimensions10.28 × 8.41 × 5.58 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
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
10.28 mm8.41 mm3.80 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689566677
Side View
Table 61.0%Crown 34.3°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 66.3%

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: Oct 31
Current: $12,464 SGD|Low: $1,788 SGD|High: $12,848 SGD|Avg: $4,757 SGD|-3.0%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 15$1,788 SGD
Retailer 17$2,071 SGD
Retailer 8$2,203 SGD
Retailer 10$2,258 SGD
Retailer 16$2,587 SGD
Retailer 4$2,797 SGD
Retailer 13$2,975 SGD
Retailer 5$3,693 SGD
Retailer 2$4,181 SGD
Retailer 19$4,300 SGD
Retailer 18$4,481 SGD
Retailer 11$4,809 SGD
Retailer 3$5,778 SGD
Retailer 6$5,804 SGD
Retailer 20$5,981 SGD
Retailer 14$6,188 SGD
Retailer 12$6,496 SGD
Retailer 9$6,543 SGD
Retailer 7$7,103 SGD
Brilliant Earth$12,464 SGD

36 data points across 20 retailers

21 retailers$1,788 SGD to $12,464 SGD

A
Cheapest Retailer
-
$1,788 SGD
$1,399 USD
Final sale: no returns
A
Retailer 2
-
$2,071 SGD
$1,620 USD
View
A
Retailer 3
-
$2,203 SGD
$1,723 USD
View
A
Retailer 4
-
$2,258 SGD
HK$13,800 HKD
View
A
Retailer 5
-
$2,587 SGD
£1,593 GBP
View
Retailer 6
-
$2,673 SGD
£1,646 GBP
View
Price last confirmed 16 days ago
A
Retailer 7
-
$2,797 SGD
$2,188 USD
View
A
Retailer 8
-
$2,975 SGD
€2,216 EUR
View
B+
Retailer 9
-
$3,693 SGD
$2,889 USD
View
B+
Retailer 10
-
$4,181 SGD
A$5,032 AUD
View
B+
Retailer 11
-
$4,300 SGD
ZAR 54,340 ZAR
View
B+
Retailer 12
-
$4,481 SGD
£2,760 GBP
View
B+
Retailer 13
-
$4,809 SGD
$3,762 USD
View
Retailer 14
-
$5,778 SGD
$4,520 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$5,804 SGD
$4,540 USD
View
B+
Retailer 16
-
$5,981 SGD
£3,684 GBP
View
B+
Retailer 17
-
$6,188 SGD
A$7,447 AUD
View
B
Retailer 18
-
$6,496 SGD
$5,081 USD
View
B
Retailer 19
-
$6,543 SGD
View
B
Retailer 20
-
$7,103 SGD
$5,556 USD
View
Most Expensive
B
Brilliant Earth
14438044A · Oct 31
$12,464 SGD
$9,750 USD
View
20 more retailers have this diamond
Prices start from $1,788 SGDSave up to $10,676 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
3.80ct Cushion
$1,788 SGD