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Marquise|Lab Grown|IGI

3.51ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG717586084

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG717586084

Diamond specifications and retailer prices

From HK$54,951 HKD
$7,004 USD
As of October 30, 2026
Save HK$162,484 HKD (75%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$217,435 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.51ct lab-grown marquise diamond

This 3.51ct 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 LG717586084 or 717586084. Listed at 24 retailers as of October 30, 2026, with prices from HK$54,951 to HK$217,435, a HK$162,484 spread on the same certified stone. Taylor and Hart lists it at HK$217,435. 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
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717586084
Dimensions15.17 × 7.77 × 5.08 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.17 mm7.77 mm3.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717586084
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 65.4%

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 30
Current: HK$125,158 HKD|Low: HK$54,951 HKD|High: HK$230,698 HKD|Avg: HK$89,867 HKD|-9.2%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Taylor and Hart
November 1, 2026
Retailer 7HK$54,951 HKD
Retailer 5HK$57,070 HKD
Retailer 2HK$57,148 HKD
Retailer 11HK$58,835 HKD
Retailer 19HK$59,902 HKD
Retailer 4HK$63,432 HKD
Retailer 6HK$63,746 HKD
Retailer 9HK$63,746 HKD
Retailer 20HK$68,940 HKD
Retailer 8HK$75,672 HKD
Retailer 18HK$77,249 HKD
Retailer 13HK$77,610 HKD
Retailer 15HK$79,972 HKD
Retailer 10HK$91,231 HKD
Retailer 17HK$94,368 HKD
Retailer 12HK$97,679 HKD
Retailer 16HK$102,983 HKD
Retailer 3HK$116,367 HKD
Retailer 1HK$125,158 HKD
Retailer 14HK$148,013 HKD
Taylor and HartHK$217,435 HKD

34 data points across 21 retailers

24 retailersHK$54,951 HKD to HK$217,435 HKD

A
Cheapest Retailer
-
HK$54,951 HKD
$7,004 USD
B+
Retailer 2
-
HK$57,070 HKD
$7,274 USD
View
A
Retailer 3
-
HK$57,148 HKD
$7,284 USD
View
A
Retailer 4
-
HK$58,835 HKD
$7,499 USD
View
A
Retailer 5
-
HK$59,902 HKD
$7,635 USD
View
B+
Retailer 6
-
HK$63,432 HKD
$8,085 USD
View
B+
Retailer 7
-
HK$63,746 HKD
$8,125 USD
View
Retailer 8
-
HK$63,746 HKD
$8,125 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
HK$68,940 HKD
$8,787 USD
View
B+
Retailer 10
-
HK$75,672 HKD
$9,645 USD
View
B+
Retailer 11
-
HK$77,249 HKD
$9,846 USD
View
Final sale: no returns
Retailer 12
-
HK$77,610 HKD
£7,789 GBP
View
Price last confirmed 31 days ago
B+
Retailer 13
-
HK$79,972 HKD
£8,026 GBP
View
Retailer 14
-
HK$87,205 HKD
$11,115 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
HK$91,231 HKD
£9,156 GBP
View
Retailer 16
-
HK$93,521 HKD
$11,920 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
HK$94,368 HKD
$12,028 USD
View
B+
Retailer 18
-
HK$97,679 HKD
$12,450 USD
View
B+
Retailer 19
-
HK$102,983 HKD
€12,501 EUR
View
B+
Retailer 20
-
HK$107,973 HKD
$13,762 USD
View
B+
Retailer 21
-
HK$116,367 HKD
$14,832 USD
View
B
Retailer 22
-
HK$125,158 HKD
£12,561 GBP
View
B
Retailer 23
-
HK$148,013 HKD
ZAR 304,774 ZAR
View
Most Expensive
B
Taylor and Hart
HWQ20GM · Oct 31
HK$217,435 HKD
$27,714 USD
View
23 more retailers have this diamond
Prices start from HK$54,951 HKDSave up to HK$162,484 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$54,951 HKD