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Cushion|Lab Grown|IGI

3.09ct K VS1 Cushion Lab Grown Diamond

EX • K/VS1 • IGI LG817653840

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG817653840

Diamond specifications and retailer prices

From $2,337 AUD
As of November 6, 2026
Save $5,960 AUD (72%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,297 AUD at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817653840 or 817653840. Listed at 5 retailers as of November 6, 2026, with prices from $2,337 to $8,297, a $5,960 spread on the same certified stone. Frank Darling lists it at $8,297. 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
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817653840
Dimensions10.59 × 7.25 × 4.86 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa Faint Brown
Top View
10.59 mm7.25 mm3.09 ctK / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817653840
Side View
Table 53.0%Crown 38.7°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 67.0%

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: Nov 6
Current: $8,297 AUD|Low: $1,883 AUD|High: $8,297 AUD|Avg: $4,241 AUD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$2,016 AUD
Retailer 5$2,270 AUD
Retailer 9$2,329 AUD
Retailer 3$2,337 AUD
Retailer 4$4,219 AUD
Retailer 2$4,740 AUD
Retailer 7$6,485 AUD
Retailer 8$6,755 AUD
Frank Darling$8,297 AUD

16 data points across 9 retailers

5 retailers$2,337 AUD to $8,297 AUD

Retailer 1
-
$2,329 AUD
Price last confirmed 37 days ago
A
Retailer 2
-
$2,337 AUD
View
B+
Retailer 3
-
$4,219 AUD
View
B
Retailer 4
-
$4,740 AUD
View
Most Expensive
B
Frank Darling
LGO944829JA · Nov 6
$8,297 AUD
$5,701 USD
View
4 more retailers have this diamond
Prices start from $2,337 AUDSave up to $5,960 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
$2,337 AUD