CaratHunter
Plans
Cushion|Lab Grown|IGI

3.51ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG813654337

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

Certificate IGI LG813654337

Diamond specifications and retailer prices

From $1,269 AUD
$889 USD
As of November 1, 2026
Save $6,723 AUD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,992 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG813654337 or 813654337. Listed at 21 retailers as of October 27, 2026, with prices from $1,269 to $7,992, a $6,723 spread on the same certified stone. Queensmith lists it at $7,992. 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

3.51
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813654337
Dimensions8.90 × 8.68 × 5.56 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.90 mm8.68 mm3.51 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813654337
Side View
Table 62.0%Crown 32.9°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 64.1%

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 1
Current: $2,875 AUD|Low: $1,269 AUD|High: $7,477 AUD|Avg: $3,297 AUD|+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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 8$1,269 AUD
Retailer 12$1,524 AUD
Retailer 3$1,584 AUD
Retailer 6$1,869 AUD
Retailer 9$1,881 AUD
Retailer 16$1,993 AUD
Retailer 13$1,999 AUD
Retailer 1$2,875 AUD
Retailer 18$2,967 AUD
Retailer 19$3,051 AUD
Retailer 7$3,231 AUD
Retailer 4$3,826 AUD
Retailer 5$4,088 AUD
Retailer 10$4,407 AUD
Retailer 11$4,543 AUD
Retailer 14$4,925 AUD
Retailer 17$5,407 AUD
Retailer 2$5,686 AUD
Retailer 15$7,477 AUD

27 data points across 19 retailers

21 retailers$1,269 AUD to $7,992 AUD

A
Cheapest Retailer
-
$1,269 AUD
$889 USD
Final sale: no returns
Retailer 2
-
$1,366 AUD
$957 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$1,524 AUD
£841 GBP
View
A
Retailer 4
-
$1,584 AUD
$1,110 USD
View
A
Retailer 5
-
$1,869 AUD
$1,310 USD
View
A
Retailer 6
-
$1,881 AUD
$1,318 USD
View
A
Retailer 7
-
$1,993 AUD
€1,330 EUR
View
A
Retailer 8
-
$1,999 AUD
£1,103 GBP
View
B+
Retailer 9
-
$2,875 AUD
$2,015 USD
View
B+
Retailer 10
-
$2,967 AUD
View
B+
Retailer 11
-
$3,051 AUD
ZAR 34,540 ZAR
View
B+
Retailer 12
-
$3,231 AUD
$2,264 USD
View
B+
Retailer 13
-
$3,826 AUD
$2,681 USD
View
B
Retailer 14
-
$4,088 AUD
£2,256 GBP
View
B
Retailer 15
-
$4,407 AUD
$3,088 USD
View
B
Retailer 16
-
$4,543 AUD
$3,184 USD
View
B
Retailer 17
-
$4,925 AUD
£2,718 GBP
View
B
Retailer 18
-
$5,407 AUD
View
B
Retailer 19
-
$5,686 AUD
$3,985 USD
View
B
Retailer 20
-
$7,477 AUD
$5,240 USD
View
Most Expensive
B
Queensmith
LG813654337 · Oct 27
$7,992 AUD
£4,410 GBP
View
20 more retailers have this diamond
Prices start from $1,269 AUDSave up to $6,723 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
3.51ct Cushion
$1,269 AUD