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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 HK$17,182 HKD
$2,190 USD
As of November 1, 2026
Save HK$55,940 HKD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$73,122 HKD at Brilliant Earth · As of October 31, 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 31, 2026, with prices from HK$17,182 to HK$73,122, a HK$55,940 spread on the same certified stone. Brilliant Earth lists it at HK$73,122. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$73,122 HKD|Low: HK$17,182 HKD|High: HK$103,386 HKD|Avg: HK$46,848 HKD|-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 1, 2026
Retailer 10HK$17,182 HKD
Retailer 9HK$19,206 HKD
Retailer 13HK$21,692 HKD
Retailer 7HK$23,783 HKD
Retailer 6HK$26,110 HKD
Retailer 8HK$27,531 HKD
Retailer 3HK$40,159 HKD
Retailer 11HK$42,210 HKD
Retailer 4HK$46,980 HKD
Retailer 2HK$49,392 HKD
Retailer 5HK$50,605 HKD
Retailer 12HK$60,568 HKD
Brilliant EarthHK$73,122 HKD

37 data points across 13 retailers

13 retailersHK$17,182 HKD to HK$73,122 HKD

A
Cheapest Retailer
-
HK$17,182 HKD
$2,190 USD
A
Retailer 2
-
HK$19,206 HKD
$2,448 USD
View
A
Retailer 3
-
HK$21,692 HKD
View
A
Retailer 4
-
HK$23,783 HKD
£2,387 GBP
View
A
Retailer 5
-
HK$26,110 HKD
$3,328 USD
View
A
Retailer 6
-
HK$27,531 HKD
€3,342 EUR
View
B+
Retailer 7
-
HK$40,159 HKD
ZAR 82,691 ZAR
View
B+
Retailer 8
-
HK$42,210 HKD
$5,380 USD
View
B+
Retailer 9
-
HK$46,980 HKD
$5,988 USD
View
B+
Retailer 10
-
HK$49,392 HKD
£4,957 GBP
View
Retailer 11
-
HK$50,605 HKD
$6,450 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
HK$60,568 HKD
$7,720 USD
View
Most Expensive
B
Brilliant Earth
20870143Y · Oct 31
HK$73,122 HKD
$9,320 USD
View
12 more retailers have this diamond
Prices start from HK$17,182 HKDSave up to HK$55,940 HKD

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
HK$17,182 HKD