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 $1,606 USD
As of November 6, 2026
Save $4,095 USD (72%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,701 USD 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 $1,606 to $5,701, a $4,095 spread on the same certified stone. Frank Darling lists it at $5,701. 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
Color
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: $5,701 USD|Low: $1,294 USD|High: $5,701 USD|Avg: $2,914 USD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$1,385 USD
Retailer 5$1,560 USD
Retailer 9$1,600 USD
Retailer 3$1,606 USD
Retailer 4$2,899 USD
Retailer 2$3,257 USD
Retailer 7$4,456 USD
Retailer 8$4,641 USD
Frank Darling$5,701 USD

16 data points across 9 retailers

5 retailers$1,606 USD to $5,701 USD

Retailer 1
-
$1,600 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$1,606 USD
View
B+
Retailer 3
-
$2,899 USD
View
B
Retailer 4
-
$3,257 USD
View
Most Expensive
B
Frank Darling
LGO944829JA · Nov 6
$5,701 USD
View
4 more retailers have this diamond
Prices start from $1,606 USDSave up to $4,095 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
$1,606 USD