Marquise|Lab Grown|IGI

4.31ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG793603302

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG793603302

Diamond specifications and retailer prices

From HK$69,262 HKD
$8,828 USD
As of October 27, 2026
Save HK$184,709 HKD (73%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$253,971 HKD at Taylor and Hart · As of October 26, 2026
View at Taylor and Hart

About this 4.31ct lab-grown marquise diamond

This 4.31ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG793603302 or 793603302. Listed at 24 retailers as of October 26, 2026, with prices from HK$69,262 to HK$253,971, a HK$184,709 spread on the same certified stone. Taylor and Hart lists it at HK$253,971. 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

4.31
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793603302
Dimensions16.79 × 8.65 × 5.23 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.79 mm8.65 mm4.31 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793603302
Side View
Table 61.0%Crown 34.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.5%

Caratlytics Score

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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: Oct 27
Current: HK$127,458 HKD|Low: HK$61,040 HKD|High: HK$404,830 HKD|Avg: HK$137,919 HKD|-3.5%
Retailer 1
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Retailer 4
Retailer 5
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Retailer 7
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Retailer 10
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Retailer 23
Taylor and Hart
October 27, 2026
Retailer 22HK$69,262 HKD
Retailer 4HK$72,031 HKD
Retailer 20HK$72,243 HKD
Retailer 14HK$73,533 HKD
Retailer 9HK$74,134 HKD
Retailer 11HK$79,555 HKD
Retailer 6HK$79,697 HKD
Retailer 2HK$80,340 HKD
Retailer 3HK$90,351 HKD
Retailer 23HK$91,810 HKD
Retailer 5HK$93,238 HKD
Retailer 12HK$96,442 HKD
Retailer 7HK$115,144 HKD
Retailer 10HK$127,278 HKD
Retailer 1HK$127,458 HKD
Retailer 19HK$129,376 HKD
Retailer 17HK$146,471 HKD
Retailer 18HK$170,334 HKD
Retailer 21HK$181,895 HKD
Retailer 15HK$182,640 HKD
Retailer 8HK$209,788 HKD
Retailer 16HK$223,768 HKD
Taylor and HartHK$253,971 HKD
Retailer 13HK$404,830 HKD

34 data points across 24 retailers

24 retailersHK$69,262 HKD to HK$253,971 HKD

A
Cheapest Retailer
-
HK$69,262 HKD
$8,828 USD
Retailer 2
-
HK$72,031 HKD
$9,181 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
HK$72,243 HKD
$9,208 USD
View
A
Retailer 4
-
HK$73,533 HKD
CA$13,017 CAD
View
A
Retailer 5
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HK$74,134 HKD
$9,449 USD
View
A
Retailer 6
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HK$79,555 HKD
$10,140 USD
View
A
Retailer 7
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HK$79,697 HKD
$10,158 USD
View
A
Retailer 8
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HK$80,340 HKD
$10,240 USD
View
Retailer 9
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HK$80,340 HKD
$10,240 USD
View
Price last confirmed 16 days ago
Retailer 10
-
HK$90,351 HKD
$11,516 USD
View
Price last confirmed 7 days ago
A
Retailer 11
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HK$91,810 HKD
$11,702 USD
View
A
Retailer 12
-
HK$96,442 HKD
£9,679 GBP
View
B+
Retailer 13
-
HK$115,144 HKD
£11,556 GBP
View
Retailer 14
-
HK$126,465 HKD
$16,119 USD
View
Price last confirmed 11 days ago
B+
Retailer 15
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HK$127,458 HKD
€15,472 EUR
View
B+
Retailer 16
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HK$129,376 HKD
$16,490 USD
View
B+
Retailer 17
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HK$146,471 HKD
£14,700 GBP
View
Retailer 18
-
HK$170,334 HKD
ZAR 350,735 ZAR
View
Price last confirmed 7 days ago
B
Retailer 19
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HK$181,895 HKD
$23,184 USD
View
B
Retailer 20
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HK$182,640 HKD
$23,279 USD
View
Retailer 21
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HK$209,788 HKD
$26,739 USD
View
Price last confirmed 8 days ago
B
Retailer 22
-
HK$223,768 HKD
$28,521 USD
View
Most Expensive
B
Taylor and Hart
8PB1PC0 · Oct 26
HK$253,971 HKD
$32,371 USD
View
22 more retailers have this diamond
Prices start from HK$69,262 HKDSave up to HK$184,709 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
4.31ct Marquise
HK$69,262 HKD