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 $533 USD
As of October 29, 2026
Save $3,798 USD (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,331 USD 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 13 retailers as of October 28, 2026, with prices from $533 to $4,331, a $3,798 spread on the same certified stone. Queensmith lists it at $4,331. 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
Color
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: $4,331 USD|Low: $388 USD|High: $4,506 USD|Avg: $1,835 USD
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
October 29, 2026
Retailer 8$390 USD
Retailer 13$533 USD
Retailer 4$605 USD
Retailer 15$792 USD
Retailer 5$864 USD
Retailer 2$1,023 USD
Retailer 12$1,126 USD
Retailer 6$1,798 USD
Retailer 7$2,095 USD
Retailer 11$2,234 USD
Retailer 14$2,259 USD
Retailer 9$2,743 USD
Retailer 3$2,845 USD
Retailer 10$4,240 USD
Retailer 16$4,262 USD
Queensmith$4,331 USD

18 data points across 16 retailers

13 retailers$533 USD to $4,331 USD

A
Cheapest Retailer
-
$533 USD
Final sale: no returns
B+
Retailer 2
-
$792 USD
View
A
Retailer 3
-
$1,023 USD
£806 GBP
View
A
Retailer 4
-
$1,126 USD
View
B+
Retailer 5
-
$2,212 USD
View
B+
Retailer 6
-
$2,234 USD
View
B+
Retailer 7
-
$2,259 USD
View
B+
Retailer 8
-
$2,503 USD
A$3,850 AUD
View
Price last confirmed 117 days ago
B
Retailer 9
-
$2,743 USD
£2,160 GBP
View
B
Retailer 10
-
$2,845 USD
View
Price last confirmed 14 days ago
B
Retailer 11
-
$4,240 USD
View
B
Retailer 12
-
$4,262 USD
View
Most Expensive
B
Queensmith
LG790677719 · Oct 28
$4,331 USD
£3,410 GBP
View
12 more retailers have this diamond
Prices start from $533 USDSave up to $3,798 USD

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
$533 USD