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Cushion|Lab Grown|IGI

3.11ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG737521181

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG737521181

Diamond specifications and retailer prices

From $925 USD
As of October 31, 2026
Save $8,315 USD (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,240 USD at Brilliant Earth · As of October 25, 2026
View at Brilliant Earth

About this 3.11ct lab-grown cushion diamond

This 3.11ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG737521181 or 737521181. Listed at 9 retailers as of October 25, 2026, with prices from $925 to $9,240, a $8,315 spread on the same certified stone. Brilliant Earth lists it at $9,240. 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

3.11
Carat
D
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737521181
Dimensions8.69 × 7.93 × 5.38 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.69 mm7.93 mm3.11 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737521181
Side View
Table 65.0%Crown 34.8°Girdle: MED-THKPavilion 38.9°Culet: NoneDepth 67.8%

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: Oct 31
Current: $9,240 USD|Low: $925 USD|High: $10,090 USD|Avg: $3,096 USD|-8.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5$925 USD
Retailer 9$1,113 USD
Retailer 10$1,121 USD
Retailer 2$1,329 USD
Retailer 12$1,400 USD
Retailer 11$1,629 USD
Retailer 4$1,898 USD
Retailer 8$2,121 USD
Retailer 3$2,637 USD
Retailer 7$6,080 USD
Retailer 6$6,930 USD
Brilliant Earth$9,240 USD

18 data points across 12 retailers

9 retailers$925 USD to $9,240 USD

A
Cheapest Retailer
-
$925 USD
Retailer 2
-
$1,113 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$1,121 USD
View
A
Retailer 4
-
$1,329 USD
€1,266 EUR
View
Retailer 5
-
$1,629 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$2,121 USD
View
B
Retailer 7
-
$6,080 USD
View
B
Retailer 8
-
$6,930 USD
View
Most Expensive
B
Brilliant Earth
20596410A · Oct 25
$9,240 USD
View
8 more retailers have this diamond
Prices start from $925 USDSave up to $8,315 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
3.11ct Cushion
$925 USD