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Cushion|Lab Grown|IGI

3.09ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG790677719

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG790677719

Diamond specifications and retailer prices

From $759 AUD
$533 USD
As of October 29, 2026
Save $5,406 AUD (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,165 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG790677719 or 790677719. Listed at 14 retailers as of October 28, 2026, with prices from $759 to $6,165, a $5,406 spread on the same certified stone. Queensmith lists it at $6,165. 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

3.09
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790677719
Dimensions10.16 × 7.68 × 5.21 mm
L/W Ratio1.32
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.16 mm7.68 mm3.09 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790677719
Side View
Table 60.0%Crown 34.3°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 67.8%

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: Oct 29
Current: $6,165 AUD|Low: $552 AUD|High: $6,414 AUD|Avg: $2,626 AUD
Queensmith
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
October 30, 2026
Retailer 9$555 AUD
Retailer 15$759 AUD
Retailer 5$861 AUD
Retailer 17$1,127 AUD
Retailer 6$1,230 AUD
Retailer 10$1,461 AUD
Retailer 14$1,603 AUD
Retailer 2$1,964 AUD
Retailer 7$2,560 AUD
Retailer 8$2,982 AUD
Retailer 13$3,180 AUD
Retailer 16$3,216 AUD
Retailer 11$3,905 AUD
Retailer 4$4,050 AUD
Retailer 12$6,036 AUD
Retailer 3$6,068 AUD
Queensmith$6,165 AUD

18 data points across 17 retailers

14 retailers$759 AUD to $6,165 AUD

A
Cheapest Retailer
-
$759 AUD
$533 USD
Final sale: no returns
B+
Retailer 2
-
$1,127 AUD
$792 USD
View
A
Retailer 3
-
$1,461 AUD
£808 GBP
View
A
Retailer 4
-
$1,603 AUD
$1,126 USD
View
A
Retailer 5
-
$1,964 AUD
View
B+
Retailer 6
-
$3,149 AUD
$2,212 USD
View
B+
Retailer 7
-
$3,180 AUD
$2,234 USD
View
B+
Retailer 8
-
$3,216 AUD
$2,259 USD
View
Retailer 9
-
$3,563 AUD
View
Price last confirmed 119 days ago
B
Retailer 10
-
$3,905 AUD
£2,160 GBP
View
Retailer 11
-
$4,050 AUD
$2,845 USD
View
Price last confirmed 16 days ago
B
Retailer 12
-
$6,036 AUD
$4,240 USD
View
B
Retailer 13
-
$6,068 AUD
$4,262 USD
View
Most Expensive
B
Queensmith
LG790677719 · Oct 28
$6,165 AUD
£3,410 GBP
View
13 more retailers have this diamond
Prices start from $759 AUDSave up to $5,406 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
3.09ct Cushion
$759 AUD