CaratHunter
Plans
Cushion|Lab Grown|IGI

3.06ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG818686311

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG818686311

Diamond specifications and retailer prices

From $1,217 AUD
$855 USD
As of November 2, 2026
Save $5,474 AUD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,691 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.06ct lab-grown cushion diamond

This 3.06ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818686311 or 818686311. Listed at 18 retailers as of October 31, 2026, with prices from $1,217 to $6,691, a $5,474 spread on the same certified stone. Brilliant Earth lists it at $6,691. 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

3.06
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686311
Dimensions9.86 × 7.40 × 4.96 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.86 mm7.40 mm3.06 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686311
Side View
Table 60.0%Crown 45.5°Girdle: STK-THKPavilion 41.3°Culet: LargeDepth 67.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $6,691 AUD|Low: $1,028 AUD|High: $8,385 AUD|Avg: $2,509 AUD|-20.2%
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
November 2, 2026
Retailer 4$1,028 AUD
Retailer 13$1,217 AUD
Retailer 14$1,378 AUD
Retailer 8$1,543 AUD
Retailer 2$1,606 AUD
Retailer 5$1,788 AUD
Retailer 10$2,171 AUD
Retailer 12$2,323 AUD
Retailer 3$2,994 AUD
Retailer 15$3,074 AUD
Retailer 6$3,246 AUD
Retailer 9$3,281 AUD
Retailer 7$3,328 AUD
Retailer 11$4,467 AUD
Brilliant Earth$6,691 AUD

41 data points across 15 retailers

18 retailers$1,217 AUD to $6,691 AUD

Retailer 1
-
$829 AUD
$582 USD
Price last confirmed 34 days ago
Retailer 2
-
$928 AUD
$652 USD
View
Price last confirmed 39 days ago
Retailer 3
-
$1,015 AUD
$713 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$1,217 AUD
$855 USD
View
A
Retailer 5
-
$1,378 AUD
$968 USD
View
A
Retailer 6
-
$1,543 AUD
€1,032 EUR
View
A
Retailer 7
-
$1,606 AUD
£888 GBP
View
A
Retailer 8
-
$1,788 AUD
$1,256 USD
View
B+
Retailer 9
-
$2,171 AUD
View
B+
Retailer 10
-
$2,323 AUD
$1,632 USD
View
Retailer 11
-
$2,703 AUD
$1,899 USD
View
Price last confirmed 32 days ago
Retailer 12
-
$2,994 AUD
£1,656 GBP
View
Price last confirmed 17 days ago
Retailer 13
-
$3,074 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$3,246 AUD
SGD 3,081 SGD
View
B+
Retailer 15
-
$3,281 AUD
$2,305 USD
View
B+
Retailer 16
-
$3,328 AUD
$2,338 USD
View
B
Retailer 17
-
$4,467 AUD
£2,471 GBP
View
Most Expensive
B
Brilliant Earth
21728218A · Oct 31
$6,691 AUD
$4,700 USD
View
17 more retailers have this diamond
Prices start from $1,217 AUDSave up to $5,474 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
3.06ct Cushion
$1,217 AUD