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Cushion|Lab Grown|IGI

3.11ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG735531364

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG735531364

Diamond specifications and retailer prices

From $1,819 NZD
$1,025 USD
As of October 31, 2026
Save $14,682 NZD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $16,501 NZD at Brilliant Earth · As of October 28, 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 LG735531364 or 735531364. Listed at 21 retailers as of October 28, 2026, with prices from $1,819 to $16,501, a $14,682 spread on the same certified stone. Brilliant Earth lists it at $16,501. 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
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735531364
Dimensions8.50 × 8.50 × 5.58 mm
L/W Ratio1.00
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
8.50 mm8.50 mm3.11 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735531364
Side View
Table 61.0%Crown 38.5°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 65.6%

Caratlytics Score

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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: $16,501 NZD|Low: $1,819 NZD|High: $16,501 NZD|Avg: $5,126 NZD
Brilliant Earth
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
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 15$1,819 NZD
Retailer 18$2,165 NZD
Retailer 9$2,317 NZD
Retailer 6$2,372 NZD
Retailer 19$2,848 NZD
Retailer 2$2,904 NZD
Retailer 13$3,024 NZD
Retailer 3$3,809 NZD
Retailer 14$4,258 NZD
Retailer 16$4,378 NZD
Retailer 10$4,856 NZD
Retailer 11$5,219 NZD
Retailer 7$5,898 NZD
Retailer 4$6,172 NZD
Retailer 17$6,429 NZD
Retailer 12$6,554 NZD
Retailer 8$6,677 NZD
Retailer 5$7,172 NZD
Retailer 20$7,282 NZD
Brilliant Earth$16,501 NZD

37 data points across 20 retailers

21 retailers$1,819 NZD to $16,501 NZD

A
Cheapest Retailer
-
$1,819 NZD
$1,025 USD
Final sale: no returns
A
Retailer 2
-
$2,165 NZD
$1,220 USD
View
A
Retailer 3
-
$2,317 NZD
HK$10,200 HKD
View
A
Retailer 4
-
$2,372 NZD
$1,337 USD
View
A
Retailer 5
-
$2,848 NZD
$1,605 USD
View
A
Retailer 6
-
$2,904 NZD
£1,289 GBP
View
Retailer 7
-
$2,949 NZD
£1,309 GBP
View
Price last confirmed 16 days ago
A
Retailer 8
-
$3,024 NZD
€1,623 EUR
View
B+
Retailer 9
-
$3,809 NZD
$2,147 USD
View
B+
Retailer 10
-
$4,258 NZD
A$3,692 AUD
View
B+
Retailer 11
-
$4,378 NZD
ZAR 39,862 ZAR
View
B+
Retailer 12
-
$4,856 NZD
$2,737 USD
View
B+
Retailer 13
-
$5,219 NZD
£2,316 GBP
View
B+
Retailer 14
-
$5,898 NZD
$3,324 USD
View
B
Retailer 15
-
$6,172 NZD
$3,479 USD
View
B+
Retailer 16
-
$6,429 NZD
£2,853 GBP
View
B
Retailer 17
-
$6,554 NZD
$3,694 USD
View
B
Retailer 18
-
$6,677 NZD
SGD 5,085 SGD
View
B
Retailer 19
-
$7,172 NZD
$4,042 USD
View
Retailer 20
-
$7,282 NZD
A$6,314 AUD
View
Price last confirmed 27 days ago
Most Expensive
B
Brilliant Earth
16122051A · Oct 28
$16,501 NZD
$9,300 USD
View
20 more retailers have this diamond
Prices start from $1,819 NZDSave up to $14,682 NZD

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
$1,819 NZD