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Marquise|Lab Grown|IGI

5.09ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG818631869

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818631869

Diamond specifications and retailer prices

From HK$154,427 HKD
$19,683 USD
As of November 1, 2026
Save HK$212,716 HKD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$367,143 HKD at Aida Diamonds · As of November 1, 2026
View at Aida Diamonds

About this 5.09ct lab-grown marquise diamond

This 5.09ct lab-grown marquise sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818631869 or 818631869. Listed at 14 retailers as of November 1, 2026, with prices from HK$154,427 to HK$367,143, a HK$212,716 spread on the same certified stone. Aida Diamonds lists it at HK$367,143. 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

5.09
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818631869
Dimensions17.11 × 8.95 × 5.74 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.11 mm8.95 mm5.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818631869
Side View
Table 62.0%Crown 36°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 64.1%

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: Nov 1
Current: HK$367,143 HKD|Low: HK$154,427 HKD|High: HK$499,950 HKD|Avg: HK$272,554 HKD|-0.2%
Aida Diamonds
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
November 1, 2026
Retailer 12HK$154,427 HKD
Retailer 5HK$163,363 HKD
Retailer 8HK$163,850 HKD
Retailer 3HK$173,076 HKD
Retailer 7HK$184,510 HKD
Retailer 10HK$192,386 HKD
Retailer 14HK$256,833 HKD
Retailer 2HK$275,187 HKD
Retailer 11HK$316,759 HKD
Retailer 13HK$322,443 HKD
Retailer 9HK$364,252 HKD
Aida DiamondsHK$367,143 HKD
Retailer 6HK$424,569 HKD
Retailer 4HK$499,950 HKD

17 data points across 14 retailers

14 retailersHK$154,427 HKD to HK$367,143 HKD

A
Cheapest Retailer
-
HK$154,427 HKD
$19,683 USD
A
Retailer 2
-
HK$163,363 HKD
$20,822 USD
View
A
Retailer 3
-
HK$163,850 HKD
$20,884 USD
View
A
Retailer 4
-
HK$173,076 HKD
$22,060 USD
View
Final sale: no returns
A
Retailer 5
-
HK$184,510 HKD
£18,518 GBP
View
A
Retailer 6
-
HK$192,386 HKD
£19,308 GBP
View
B+
Retailer 7
-
HK$256,833 HKD
£25,776 GBP
View
B+
Retailer 8
-
HK$275,187 HKD
£27,618 GBP
View
B+
Retailer 9
-
HK$316,759 HKD
€38,451 EUR
View
B+
Retailer 10
-
HK$322,443 HKD
$41,098 USD
View
B
Retailer 11
-
HK$364,252 HKD
ZAR 750,031 ZAR
View
Most Expensive
B
Aida Diamonds
497633456 · Nov 1
HK$367,143 HKD
A$71,993 AUD
View
11 more retailers have this diamond
Prices start from HK$154,427 HKDSave up to HK$212,716 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
5.09ct Marquise
HK$154,427 HKD