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Marquise|Lab Grown|IGI

5.12ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG821655131

Certificate IGI LG821655131

Diamond specifications and retailer prices

From HK$44,030 HKD
$5,612 USD
As of October 29, 2026
Save HK$19,285 HKD (30%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$63,315 HKD at Zales · As of October 30, 2026
View at Zales

About this 5.12ct lab-grown marquise diamond

This 5.12ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821655131 or 821655131. Listed at 4 retailers as of October 29, 2026, with prices from HK$44,030 to HK$63,315, a HK$19,285 spread on the same certified stone. Zales lists it at HK$63,315. 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

5.12
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG821655131
Dimensions16.94 × 9.38 × 5.70 mm
L/W Ratio1.81
Top View
16.94 mm9.38 mm5.12 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821655131
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: HK$59,706 HKD|Low: HK$44,030 HKD|High: HK$63,315 HKD|Avg: HK$58,042 HKD
Retailer 1
Retailer 2
Retailer 3
Zales
September 28, 2026
Retailer 2HK$44,030 HKD
Retailer 1HK$59,706 HKD
Retailer 3HK$63,315 HKD
ZalesHK$63,315 HKD

3 data points across 4 retailers

4 retailersHK$44,030 HKD to HK$63,315 HKD

B
Cheapest Retailer
-
HK$44,030 HKD
$5,612 USD
B
Retailer 2
-
HK$59,706 HKD
$7,610 USD
View
B
Retailer 3
-
HK$63,315 HKD
$8,070 USD
View
Most Expensive
B
Zales
529255431 · Oct 30
HK$63,315 HKD
$8,070 USD
View
3 more retailers have this diamond
Prices start from HK$44,030 HKDSave up to HK$19,285 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.

B
5.12ct Marquise
HK$44,030 HKD