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Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780663284

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780663284

Diamond specifications and retailer prices

From $3,885 NZD
As of November 4, 2026
Save $12,649 NZD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $16,534 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663284 or 780663284. Listed at 14 retailers as of November 4, 2026, with prices from $3,885 to $16,534, a $12,649 spread on the same certified stone. Brilliant Earth lists it at $16,534. 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

3.10
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663284
Dimensions9.99 × 7.87 × 5.12 mm
L/W Ratio1.27
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
9.99 mm7.87 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663284
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 65.1%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 4
Current: $16,534 NZD|Low: $3,885 NZD|High: $25,012 NZD|Avg: $10,428 NZD|-29.0%
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
November 5, 2026
Retailer 5$3,885 NZD
Retailer 4$4,343 NZD
Retailer 9$4,472 NZD
Retailer 8$5,019 NZD
Retailer 11$5,384 NZD
Retailer 12$5,666 NZD
Retailer 10$8,730 NZD
Retailer 3$9,108 NZD
Retailer 14$9,315 NZD
Retailer 7$10,185 NZD
Retailer 6$11,442 NZD
Retailer 13$12,558 NZD
Retailer 2$15,913 NZD
Brilliant Earth$16,534 NZD

34 data points across 14 retailers

14 retailers$3,885 NZD to $16,534 NZD

A+
Cheapest Retailer
-
$3,885 NZD
A
Retailer 2
-
$4,343 NZD
View
A
Retailer 3
-
$4,472 NZD
View
A
Retailer 4
-
$5,019 NZD
View
A
Retailer 5
-
$5,384 NZD
View
A
Retailer 6
-
$5,666 NZD
View
B+
Retailer 7
-
$8,730 NZD
View
B+
Retailer 8
-
$9,108 NZD
View
B+
Retailer 9
-
$9,315 NZD
View
B+
Retailer 10
-
$10,185 NZD
View
Retailer 11
-
$11,442 NZD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$12,558 NZD
View
B
Retailer 13
-
$15,913 NZD
View
Most Expensive
B
Brilliant Earth
19646812Y · Nov 4
$16,534 NZD
$9,320 USD
View
13 more retailers have this diamond
Prices start from $3,885 NZDSave up to $12,649 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+
3.10ct Cushion
$3,885 NZD