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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 $2,800 SGD
$2,190 USD
As of October 30, 2026
Save $9,115 SGD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,915 SGD at Brilliant Earth · As of October 29, 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 October 29, 2026, with prices from $2,800 to $11,915, a $9,115 spread on the same certified stone. Brilliant Earth lists it at $11,915. 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: Oct 30
Current: $11,915 SGD|Low: $2,800 SGD|High: $16,846 SGD|Avg: $7,606 SGD|-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
October 31, 2026
Retailer 7$2,800 SGD
Retailer 6$3,130 SGD
Retailer 10$3,535 SGD
Retailer 2$3,875 SGD
Retailer 4$4,413 SGD
Retailer 12$4,517 SGD
Retailer 11$6,544 SGD
Retailer 8$6,878 SGD
Retailer 3$7,655 SGD
Retailer 5$8,246 SGD
Retailer 13$8,402 SGD
Retailer 9$9,869 SGD
Brilliant Earth$11,915 SGD

38 data points across 13 retailers

13 retailers$2,800 SGD to $11,915 SGD

A
Cheapest Retailer
-
$2,800 SGD
$2,190 USD
A
Retailer 2
-
$3,130 SGD
$2,448 USD
View
A
Retailer 3
-
$3,535 SGD
HK$21,600 HKD
View
A
Retailer 4
-
$3,875 SGD
£2,387 GBP
View
A
Retailer 5
-
$4,413 SGD
$3,452 USD
View
A
Retailer 6
-
$4,517 SGD
€3,365 EUR
View
B+
Retailer 7
-
$6,544 SGD
ZAR 82,691 ZAR
View
B+
Retailer 8
-
$6,878 SGD
$5,380 USD
View
B+
Retailer 9
-
$7,655 SGD
$5,988 USD
View
Retailer 10
-
$8,246 SGD
$6,450 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$8,402 SGD
£5,175 GBP
View
B
Retailer 12
-
$9,869 SGD
$7,720 USD
View
Most Expensive
B
Brilliant Earth
20870143Y · Oct 29
$11,915 SGD
$9,320 USD
View
12 more retailers have this diamond
Prices start from $2,800 SGDSave up to $9,115 SGD

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
$2,800 SGD