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Marquise|Lab Grown|IGI

3.09ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780663326

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780663326

Diamond specifications and retailer prices

From HK$28,190 HKD
$3,593 USD
As of October 31, 2026
Save HK$113,134 HKD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$141,323 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise 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 LG780663326 or 780663326. Listed at 12 retailers as of October 31, 2026, with prices from HK$28,190 to HK$141,323, a HK$113,134 spread on the same certified stone. Taylor and Hart lists it at HK$141,323. 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

3.09
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663326
Dimensions15.09 × 7.69 × 4.66 mm
L/W Ratio1.96
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
15.09 mm7.69 mm3.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663326
Side View
Table 62.0%Crown 32.9°Girdle: Slightly ThickPavilion 40.1°Culet: NoneDepth 60.6%

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$82,074 HKD|Low: HK$28,190 HKD|High: HK$185,253 HKD|Avg: HK$83,252 HKD|-14.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
November 1, 2026
Retailer 9HK$28,190 HKD
Retailer 10HK$33,846 HKD
Retailer 2HK$50,212 HKD
Retailer 5HK$51,376 HKD
Retailer 12HK$61,000 HKD
Retailer 8HK$65,064 HKD
Retailer 3HK$67,771 HKD
Retailer 6HK$71,867 HKD
Retailer 1HK$82,074 HKD
Retailer 7HK$92,031 HKD
Retailer 11HK$106,670 HKD
Taylor and HartHK$141,323 HKD
Retailer 4HK$185,253 HKD

40 data points across 13 retailers

12 retailersHK$28,190 HKD to HK$141,323 HKD

A
Cheapest Retailer
-
HK$28,190 HKD
$3,593 USD
A
Retailer 2
-
HK$33,846 HKD
$4,314 USD
View
B+
Retailer 3
-
HK$50,212 HKD
View
B+
Retailer 4
-
HK$51,376 HKD
£5,156 GBP
View
B+
Retailer 5
-
HK$61,000 HKD
$7,775 USD
View
B+
Retailer 6
-
HK$65,064 HKD
€7,898 EUR
View
B+
Retailer 7
-
HK$67,771 HKD
$8,638 USD
View
B+
Retailer 8
-
HK$71,867 HKD
$9,160 USD
View
B+
Retailer 9
-
HK$82,074 HKD
£8,237 GBP
View
B+
Retailer 10
-
HK$92,031 HKD
ZAR 189,502 ZAR
View
Retailer 11
-
HK$106,670 HKD
$13,596 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Taylor and Hart
PDT5PTM · Oct 31
HK$141,323 HKD
$18,013 USD
View
11 more retailers have this diamond
Prices start from HK$28,190 HKDSave up to HK$113,134 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
3.09ct Marquise
HK$28,190 HKD