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Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780661578

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780661578

Diamond specifications and retailer prices

From $3,397 NZD
As of November 4, 2026
Save $14,520 NZD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $17,917 NZD at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

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 LG780661578 or 780661578. Listed at 11 retailers as of November 4, 2026, with prices from $3,397 to $17,917, a $14,520 spread on the same certified stone. Do Amore Diamonds lists it at $17,917. 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 angle36.9°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780661578
Dimensions9.36 × 7.82 × 5.35 mm
L/W Ratio1.20
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
9.36 mm7.82 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780661578
Side View
Table 61.0%Crown 36.9°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
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: $17,917 NZD|Low: $3,397 NZD|High: $34,646 NZD|Avg: $10,528 NZD|-48.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$3,397 NZD
Retailer 9$3,413 NZD
Retailer 10$4,387 NZD
Retailer 4$4,761 NZD
Retailer 7$5,561 NZD
Retailer 3$6,064 NZD
Retailer 5$8,416 NZD
Retailer 2$9,493 NZD
Retailer 8$11,274 NZD
Retailer 11$16,534 NZD
Do Amore Diamonds$17,917 NZD

34 data points across 11 retailers

11 retailers$3,397 NZD to $17,917 NZD

A
Cheapest Retailer
-
$3,397 NZD
A
Retailer 2
-
$3,413 NZD
View
A
Retailer 3
-
$4,387 NZD
View
A
Retailer 4
-
$4,761 NZD
View
A
Retailer 5
-
$5,561 NZD
View
A
Retailer 6
-
$6,064 NZD
View
Final sale: no returns
B+
Retailer 7
-
$8,416 NZD
View
B+
Retailer 8
-
$9,493 NZD
View
B+
Retailer 9
-
$11,274 NZD
View
B
Retailer 10
-
$16,534 NZD
View
Most Expensive
B
Do Amore Diamonds
27-9EA486FF2 · Nov 5
$17,917 NZD
$10,100 USD
View
10 more retailers have this diamond
Prices start from $3,397 NZDSave up to $14,520 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
$3,397 NZD