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Marquise|Lab Grown|IGI

3.51ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG843641551

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843641551

Diamond specifications and retailer prices

From HK$5,592 HKD
£561 GBP
As of October 27, 2026
Save HK$20,849 HKD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$26,441 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843641551 or 843641551. Listed at 13 retailers as of October 27, 2026, with prices from HK$5,592 to HK$26,441, a HK$20,849 spread on the same certified stone. Brilliant Earth lists it at HK$26,441. 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

3.51
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843641551
Dimensions15.66 × 7.75 × 4.87 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.66 mm7.75 mm3.51 ctF / VS2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG843641551
Side View
Table 59.0%Crown 35.3°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 62.8%

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 27
Current: HK$26,441 HKD|Low: HK$4,206 HKD|High: HK$44,174 HKD|Avg: HK$13,716 HKD|-40.1%
Brilliant Earth
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 2, 2026
Retailer 3HK$4,206 HKD
Retailer 9HK$5,592 HKD
Retailer 8HK$5,767 HKD
Retailer 6HK$6,238 HKD
Retailer 11HK$6,961 HKD
Retailer 10HK$7,689 HKD
Retailer 7HK$10,333 HKD
Retailer 2HK$10,639 HKD
Retailer 4HK$15,203 HKD
Retailer 14HK$16,053 HKD
Retailer 13HK$16,348 HKD
Retailer 12HK$17,139 HKD
Retailer 5HK$21,224 HKD
Brilliant EarthHK$26,441 HKD

13 data points across 14 retailers

13 retailersHK$5,592 HKD to HK$26,441 HKD

A
Cheapest Retailer
-
HK$5,592 HKD
£561 GBP
Retailer 2
-
HK$5,767 HKD
$735 USD
View
Price last confirmed 5 days ago
B+
Retailer 3
-
HK$6,238 HKD
$795 USD
View
A
Retailer 4
-
HK$6,961 HKD
€845 EUR
View
A
Retailer 5
-
HK$7,689 HKD
£772 GBP
View
A
Retailer 6
-
HK$10,333 HKD
$1,317 USD
View
A
Retailer 7
-
HK$10,639 HKD
$1,356 USD
View
B+
Retailer 8
-
HK$15,203 HKD
$1,938 USD
View
B+
Retailer 9
-
HK$16,053 HKD
$2,046 USD
View
Retailer 10
-
HK$16,348 HKD
$2,084 USD
View
Price last confirmed 8 days ago
Retailer 11
-
HK$17,139 HKD
£1,720 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
HK$21,224 HKD
$2,705 USD
View
Most Expensive
B
Brilliant Earth
22183942A · Nov 2
HK$26,441 HKD
$3,370 USD
View
12 more retailers have this diamond
Prices start from HK$5,592 HKDSave up to HK$20,849 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
3.51ct Marquise
HK$5,592 HKD