CaratHunter
Plans
Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG768629404

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG768629404

Diamond specifications and retailer prices

From HK$17,182 HKD
$2,190 USD
As of October 30, 2026
Save HK$60,137 HKD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$77,319 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

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 LG768629404 or 768629404. Listed at 14 retailers as of October 30, 2026, with prices from HK$17,182 to HK$77,319, a HK$60,137 spread on the same certified stone. Blue Nile lists it at HK$77,319. 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 angle34.7°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629404
Dimensions9.91 × 7.86 × 5.11 mm
L/W Ratio1.26
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
9.91 mm7.86 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629404
Side View
Table 59.0%Crown 34.7°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 65.0%

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: Oct 30
Current: HK$77,319 HKD|Low: HK$17,182 HKD|High: HK$171,805 HKD|Avg: HK$52,607 HKD|-55.0%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 9HK$17,182 HKD
Retailer 8HK$19,206 HKD
Retailer 12HK$21,692 HKD
Retailer 7HK$23,783 HKD
Retailer 4HK$27,083 HKD
Retailer 2HK$27,531 HKD
Retailer 13HK$40,159 HKD
Retailer 10HK$42,210 HKD
Retailer 3HK$46,980 HKD
Retailer 6HK$50,605 HKD
Retailer 14HK$51,564 HKD
Retailer 11HK$60,568 HKD
Retailer 5HK$73,122 HKD
Blue NileHK$77,319 HKD

34 data points across 14 retailers

14 retailersHK$17,182 HKD to HK$77,319 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$27,083 HKD
$3,452 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
Retailer 10
-
HK$50,605 HKD
$6,450 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
HK$51,564 HKD
£5,175 GBP
View
B+
Retailer 12
-
HK$60,568 HKD
$7,720 USD
View
B
Retailer 13
-
HK$73,122 HKD
$9,320 USD
View
Most Expensive
B
Blue Nile
29314197 · Oct 31
HK$77,319 HKD
$9,855 USD
View
13 more retailers have this diamond
Prices start from HK$17,182 HKDSave up to HK$60,137 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