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Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780685588

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780685588

Diamond specifications and retailer prices

From HK$9,030 HKD
As of November 4, 2026
Save HK$30,039 HKD (77%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$39,069 HKD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780685588 or 780685588. Listed at 25 retailers as of November 3, 2026, with prices from HK$9,030 to HK$39,069, a HK$30,039 spread on the same certified stone. Brilliant Earth lists it at HK$39,069. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780685588
Dimensions11.67 × 6.08 × 3.87 mm
L/W Ratio1.92
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
11.67 mm6.08 mm1.55 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780685588
Side View
Table 60.0%Crown 35.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$39,069 HKD|Low: HK$7,743 HKD|High: HK$39,069 HKD|Avg: HK$18,986 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 11HK$8,065 HKD
Retailer 4HK$9,351 HKD
Retailer 5HK$10,544 HKD
Retailer 9HK$10,709 HKD
Retailer 2HK$13,353 HKD
Retailer 12HK$13,376 HKD
Retailer 7HK$17,205 HKD
Retailer 8HK$18,044 HKD
Retailer 10HK$25,340 HKD
Retailer 3HK$27,615 HKD
Retailer 6HK$31,718 HKD
Brilliant EarthHK$39,069 HKD

35 data points across 12 retailers

25 retailersHK$9,030 HKD to HK$39,069 HKD

Retailer 1
-
HK$8,065 HKD
Price last confirmed 28 days ago
Retailer 2
-
HK$8,771 HKD
View
Price last confirmed 21 days ago
A
Retailer 3
-
HK$9,030 HKD
View
Final sale: no returns
Retailer 4
-
HK$9,351 HKD
View
Price last confirmed 33 days ago
Retailer 5
-
HK$9,351 HKD
View
Price last confirmed 24 days ago
A
Retailer 6
-
HK$10,238 HKD
View
A
Retailer 7
-
HK$10,544 HKD
View
A
Retailer 8
-
HK$10,709 HKD
View
A
Retailer 9
-
HK$10,944 HKD
View
A
Retailer 10
-
HK$13,353 HKD
View
A
Retailer 11
-
HK$13,376 HKD
View
B+
Retailer 12
-
HK$17,205 HKD
View
Retailer 13
-
HK$17,534 HKD
View
Price last confirmed 36 days ago
B+
Retailer 14
-
HK$18,044 HKD
View
B+
Retailer 15
-
HK$19,550 HKD
View
Retailer 16
-
HK$25,340 HKD
View
Price last confirmed 7 days ago
B
Retailer 17
-
HK$25,819 HKD
View
B
Retailer 18
-
HK$27,615 HKD
View
B
Retailer 19
-
HK$28,996 HKD
View
B
Retailer 20
-
HK$30,086 HKD
View
B
Retailer 21
-
HK$31,342 HKD
View
B
Retailer 22
-
HK$31,718 HKD
View
B
Retailer 23
-
HK$32,628 HKD
View
B
Retailer 24
-
HK$39,069 HKD
View
Most Expensive
B
Brilliant Earth
19705255A · Nov 3
HK$39,069 HKD
$4,980 USD
View
24 more retailers have this diamond
Prices start from HK$9,030 HKDSave up to HK$30,039 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
1.55ct Marquise
HK$9,030 HKD