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Marquise|Lab Grown|IGI

2.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG836638868

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG836638868

Diamond specifications and retailer prices

From HK$8,395 HKD
$1,070 USD
As of November 2, 2026
Save HK$25,617 HKD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$34,012 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 2.51ct lab-grown marquise diamond

This 2.51ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836638868 or 836638868. Listed at 17 retailers as of October 31, 2026, with prices from HK$8,395 to HK$34,012, a HK$25,617 spread on the same certified stone. Taylor and Hart lists it at HK$34,012. 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

2.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.9°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836638868
Dimensions14.86 × 6.86 × 4.38 mm
L/W Ratio2.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.86 mm6.86 mm2.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836638868
Side View
Table 62.0%Crown 30.9°Girdle: STK-THKPavilion 42.1°Culet: NoneDepth 63.8%

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: Nov 2
Current: HK$14,103 HKD|Low: HK$8,058 HKD|High: HK$40,085 HKD|Avg: HK$19,490 HKD|-13.8%
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
Taylor and Hart
November 2, 2026
Retailer 10HK$8,395 HKD
Retailer 6HK$9,133 HKD
Retailer 4HK$9,392 HKD
Retailer 11HK$9,737 HKD
Retailer 9HK$11,102 HKD
Retailer 1HK$14,103 HKD
Retailer 14HK$15,512 HKD
Retailer 2HK$18,250 HKD
Retailer 3HK$19,749 HKD
Retailer 13HK$20,667 HKD
Retailer 8HK$23,113 HKD
Retailer 5HK$26,904 HKD
Retailer 12HK$28,191 HKD
Retailer 7HK$33,023 HKD
Taylor and HartHK$34,012 HKD

45 data points across 15 retailers

17 retailersHK$8,395 HKD to HK$34,012 HKD

A
Cheapest Retailer
-
HK$8,395 HKD
$1,070 USD
A
Retailer 2
-
HK$9,133 HKD
$1,164 USD
View
A
Retailer 3
-
HK$9,392 HKD
$1,197 USD
View
Final sale: no returns
A
Retailer 4
-
HK$9,737 HKD
$1,241 USD
View
Retailer 5
-
HK$9,737 HKD
$1,241 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
HK$11,102 HKD
$1,415 USD
View
Retailer 7
-
HK$11,267 HKD
$1,436 USD
View
Price last confirmed 38 days ago
A
Retailer 8
-
HK$14,103 HKD
£1,415 GBP
View
A
Retailer 9
-
HK$15,512 HKD
$1,977 USD
View
A
Retailer 10
-
HK$18,250 HKD
$2,326 USD
View
A
Retailer 11
-
HK$19,749 HKD
$2,517 USD
View
A
Retailer 12
-
HK$20,667 HKD
$2,634 USD
View
A
Retailer 13
-
HK$23,113 HKD
A$4,532 AUD
View
A
Retailer 14
-
HK$26,904 HKD
£2,700 GBP
View
A
Retailer 15
-
HK$28,191 HKD
$3,593 USD
View
B+
Retailer 16
-
HK$33,023 HKD
£3,314 GBP
View
Most Expensive
B+
Taylor and Hart
QCVCQE1 · Oct 31
HK$34,012 HKD
$4,335 USD
View
16 more retailers have this diamond
Prices start from HK$8,395 HKDSave up to HK$25,617 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
2.51ct Marquise
HK$8,395 HKD