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Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG780663587

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

Certificate IGI LG780663587

Diamond specifications and retailer prices

From $3,125 AUD
$2,190 USD
As of November 2, 2026
Save $10,174 AUD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $13,299 AUD at Brilliant Earth · As of November 2, 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 very-good cut grade and certified by IGI LG780663587 or 780663587. Listed at 13 retailers as of November 2, 2026, with prices from $3,125 to $13,299, a $10,174 spread on the same certified stone. Brilliant Earth lists it at $13,299. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.10
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663587
Dimensions8.59 × 8.54 × 5.54 mm
L/W Ratio1.01
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
8.59 mm8.54 mm3.10 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663587
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 37.9°Culet: NoneDepth 64.9%

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: Nov 2
Current: $13,299 AUD|Low: $3,125 AUD|High: $18,803 AUD|Avg: $8,412 AUD|-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
November 2, 2026
Retailer 10$3,125 AUD
Retailer 9$3,493 AUD
Retailer 13$3,945 AUD
Retailer 2$4,325 AUD
Retailer 7$4,749 AUD
Retailer 8$5,007 AUD
Retailer 3$7,304 AUD
Retailer 11$7,677 AUD
Retailer 4$8,544 AUD
Retailer 6$8,983 AUD
Retailer 5$9,204 AUD
Retailer 12$11,016 AUD
Brilliant Earth$13,299 AUD

38 data points across 13 retailers

13 retailers$3,125 AUD to $13,299 AUD

A
Cheapest Retailer
-
$3,125 AUD
$2,190 USD
A
Retailer 2
-
$3,493 AUD
$2,448 USD
View
A
Retailer 3
-
$3,945 AUD
HK$21,600 HKD
View
A
Retailer 4
-
$4,325 AUD
£2,387 GBP
View
A
Retailer 5
-
$4,749 AUD
$3,328 USD
View
A
Retailer 6
-
$5,007 AUD
€3,342 EUR
View
B+
Retailer 7
-
$7,304 AUD
ZAR 82,691 ZAR
View
B+
Retailer 8
-
$7,677 AUD
$5,380 USD
View
B+
Retailer 9
-
$8,544 AUD
$5,988 USD
View
B+
Retailer 10
-
$8,983 AUD
£4,957 GBP
View
Retailer 11
-
$9,204 AUD
$6,450 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
$11,016 AUD
$7,720 USD
View
Most Expensive
B
Brilliant Earth
20870143Y · Nov 2
$13,299 AUD
$9,320 USD
View
12 more retailers have this diamond
Prices start from $3,125 AUDSave up to $10,174 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
$3,125 AUD