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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 $2,178 AUD
$1,530 USD
As of October 29, 2026
Save $11,702 AUD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,880 AUD at Brilliant Earth · As of October 29, 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 29, 2026, with prices from $2,178 to $13,880, a $11,702 spread on the same certified stone. Brilliant Earth lists it at $13,880. 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

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: Oct 29
Current: $13,880 AUD|Low: $1,992 AUD|High: $14,307 AUD|Avg: $5,318 AUD|-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
October 30, 2026
Retailer 18$2,178 AUD
Retailer 17$2,276 AUD
Retailer 8$2,453 AUD
Retailer 10$2,515 AUD
Retailer 2$2,905 AUD
Retailer 4$3,115 AUD
Retailer 15$3,336 AUD
Retailer 5$4,113 AUD
Retailer 19$4,665 AUD
Retailer 14$4,788 AUD
Retailer 13$4,990 AUD
Retailer 11$5,356 AUD
Retailer 20$6,435 AUD
Retailer 6$6,464 AUD
Retailer 16$6,661 AUD
Retailer 3$6,972 AUD
Retailer 12$7,234 AUD
Retailer 9$7,286 AUD
Retailer 7$7,910 AUD
Brilliant Earth$13,880 AUD

36 data points across 20 retailers

21 retailers$2,178 AUD to $13,880 AUD

A
Cheapest Retailer
-
$2,178 AUD
$1,530 USD
A
Retailer 2
-
$2,276 AUD
$1,599 USD
View
Final sale: no returns
A
Retailer 3
-
$2,453 AUD
$1,723 USD
View
A
Retailer 4
-
$2,515 AUD
HK$13,800 HKD
View
A
Retailer 5
-
$2,905 AUD
£1,607 GBP
View
Retailer 6
-
$2,977 AUD
£1,646 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
$3,115 AUD
$2,188 USD
View
A
Retailer 8
-
$3,336 AUD
€2,232 EUR
View
B+
Retailer 9
-
$4,113 AUD
$2,889 USD
View
Retailer 10
-
$4,665 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$4,788 AUD
ZAR 54,340 ZAR
View
B+
Retailer 12
-
$4,990 AUD
£2,760 GBP
View
B+
Retailer 13
-
$5,356 AUD
$3,762 USD
View
Retailer 14
-
$6,435 AUD
$4,520 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
$6,464 AUD
$4,540 USD
View
B+
Retailer 16
-
$6,661 AUD
£3,684 GBP
View
Retailer 17
-
$6,972 AUD
View
Price last confirmed 21 days ago
B
Retailer 18
-
$7,234 AUD
$5,081 USD
View
B
Retailer 19
-
$7,286 AUD
SGD 6,916 SGD
View
B
Retailer 20
-
$7,910 AUD
$5,556 USD
View
Most Expensive
B
Brilliant Earth
14438044A · Oct 29
$13,880 AUD
$9,750 USD
View
20 more retailers have this diamond
Prices start from $2,178 AUDSave up to $11,702 AUD

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
$2,178 AUD