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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 $2,739 AUD
$1,924 USD
As of November 2, 2026
Save $12,508 AUD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $15,247 AUD at Do Amore Diamonds · As of November 2, 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 2, 2026, with prices from $2,739 to $15,247, a $12,508 spread on the same certified stone. Do Amore Diamonds lists it at $15,247. 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+
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 2
Current: $15,247 AUD|Low: $2,739 AUD|High: $27,917 AUD|Avg: $8,689 AUD|-45.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$2,739 AUD
Retailer 10$2,797 AUD
Retailer 8$3,521 AUD
Retailer 5$4,046 AUD
Retailer 6$4,725 AUD
Retailer 3$4,866 AUD
Retailer 9$7,121 AUD
Retailer 4$8,102 AUD
Retailer 2$9,047 AUD
Retailer 11$13,268 AUD
Do Amore Diamonds$15,247 AUD

33 data points across 11 retailers

11 retailers$2,739 AUD to $15,247 AUD

A+
Cheapest Retailer
-
$2,739 AUD
$1,924 USD
A
Retailer 2
-
$2,797 AUD
$1,965 USD
View
A
Retailer 3
-
$3,521 AUD
$2,473 USD
View
A
Retailer 4
-
$4,046 AUD
$2,842 USD
View
A
Retailer 5
-
$4,725 AUD
€3,161 EUR
View
A
Retailer 6
-
$4,866 AUD
$3,418 USD
View
Final sale: no returns
B+
Retailer 7
-
$7,121 AUD
$5,002 USD
View
B+
Retailer 8
-
$8,102 AUD
£4,481 GBP
View
B+
Retailer 9
-
$9,047 AUD
$6,355 USD
View
B
Retailer 10
-
$13,268 AUD
$9,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-9EA486FF2 · Nov 2
$15,247 AUD
$10,710 USD
View
10 more retailers have this diamond
Prices start from $2,739 AUDSave up to $12,508 AUD

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
$2,739 AUD