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Marquise|Lab Grown|IGI

3.00ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG780663620

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780663620

Diamond specifications and retailer prices

From HK$26,008 HKD
$3,315 USD
As of October 31, 2026
Save HK$133,612 HKD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$159,621 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3ct lab-grown marquise diamond

This 3ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663620 or 780663620. Listed at 13 retailers as of October 31, 2026, with prices from HK$26,008 to HK$159,621, a HK$133,612 spread on the same certified stone. Blue Nile lists it at HK$159,621. 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

3.00
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663620
Dimensions14.54 × 7.49 × 4.73 mm
L/W Ratio1.94
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
14.54 mm7.49 mm3.00 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663620
Side View
Table 59.0%Crown 36.7°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 63.2%

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 31
Current: HK$159,621 HKD|Low: HK$26,008 HKD|High: HK$176,418 HKD|Avg: HK$73,635 HKD|-9.5%
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 30, 2026
Retailer 10HK$26,008 HKD
Retailer 6HK$26,934 HKD
Retailer 12HK$31,963 HKD
Retailer 2HK$48,221 HKD
Retailer 11HK$56,175 HKD
Retailer 14HK$56,293 HKD
Retailer 8HK$60,014 HKD
Retailer 9HK$79,055 HKD
Retailer 3HK$84,075 HKD
Retailer 5HK$85,047 HKD
Retailer 7HK$85,227 HKD
Retailer 13HK$98,385 HKD
Retailer 4HK$130,313 HKD
Blue NileHK$159,621 HKD

40 data points across 14 retailers

13 retailersHK$26,008 HKD to HK$159,621 HKD

A
Cheapest Retailer
-
HK$26,008 HKD
$3,315 USD
A
Retailer 2
-
HK$31,963 HKD
$4,074 USD
View
B+
Retailer 3
-
HK$48,221 HKD
£4,840 GBP
View
B+
Retailer 4
-
HK$56,175 HKD
$7,160 USD
View
B+
Retailer 5
-
HK$56,293 HKD
$7,175 USD
View
B+
Retailer 6
-
HK$60,014 HKD
€7,285 EUR
View
B+
Retailer 7
-
HK$79,055 HKD
£7,934 GBP
View
B
Retailer 8
-
HK$84,075 HKD
$10,716 USD
View
B
Retailer 9
-
HK$85,047 HKD
$10,840 USD
View
B
Retailer 10
-
HK$85,227 HKD
ZAR 175,491 ZAR
View
B
Retailer 11
-
HK$98,385 HKD
$12,540 USD
View
B
Retailer 12
-
HK$130,313 HKD
$16,610 USD
View
Most Expensive
B
Blue Nile
29977966 · Oct 31
HK$159,621 HKD
$20,345 USD
View
12 more retailers have this diamond
Prices start from HK$26,008 HKDSave up to HK$133,612 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
3.00ct Marquise
HK$26,008 HKD