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Princess|Lab Grown|IGI

1.51ct E IF Princess Lab Grown Diamond

EX • E/IF • IGI LG720540148

Shape and cutting style on the report: Princess cut

Certificate IGI LG720540148

Diamond specifications and retailer prices

From HK$4,872 HKD
$621 USD
As of October 30, 2026
Save HK$19,136 HKD (80%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$24,008 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720540148 or 720540148. Listed at 25 retailers as of October 30, 2026, with prices from HK$4,872 to HK$24,008, a HK$19,136 spread on the same certified stone. Brilliant Earth lists it at HK$24,008. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.6°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720540148
Dimensions6.22 × 6.16 × 4.46 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.22 mm6.16 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720540148
Side View
Table 71.0%Crown 47.6°Girdle: Slightly ThickPavilion 37.6°Culet: NoneDepth 72.4%

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 30
Current: HK$24,008 HKD|Low: HK$4,676 HKD|High: HK$25,028 HKD|Avg: HK$12,483 HKD|-4.1%
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
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 16HK$4,872 HKD
Retailer 17HK$5,445 HKD
Retailer 8HK$5,453 HKD
Retailer 3HK$6,041 HKD
Retailer 13HK$7,022 HKD
Retailer 7HK$7,665 HKD
Retailer 2HK$9,459 HKD
Retailer 10HK$10,116 HKD
Retailer 12HK$10,376 HKD
Retailer 15HK$13,126 HKD
Retailer 5HK$15,880 HKD
Retailer 14HK$16,280 HKD
Retailer 9HK$17,577 HKD
Retailer 6HK$19,072 HKD
Retailer 4HK$19,269 HKD
Retailer 11HK$23,924 HKD
Brilliant EarthHK$24,008 HKD

43 data points across 17 retailers

25 retailersHK$4,872 HKD to HK$24,008 HKD

A
Cheapest Retailer
-
HK$4,872 HKD
$621 USD
A
Retailer 2
-
HK$5,445 HKD
$694 USD
View
Final sale: no returns
A
Retailer 3
-
HK$5,453 HKD
$695 USD
View
A
Retailer 4
-
HK$6,041 HKD
$770 USD
View
Retailer 5
-
HK$6,041 HKD
$770 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
HK$6,628 HKD
View
A
Retailer 7
-
HK$7,022 HKD
$895 USD
View
A
Retailer 8
-
HK$7,665 HKD
$977 USD
View
A
Retailer 9
-
HK$8,097 HKD
$1,032 USD
View
A
Retailer 10
-
HK$8,842 HKD
$1,127 USD
View
A
Retailer 11
-
HK$9,459 HKD
£949 GBP
View
A
Retailer 12
-
HK$10,116 HKD
€1,228 EUR
View
A
Retailer 13
-
HK$10,376 HKD
ZAR 21,366 ZAR
View
B+
Retailer 14
-
HK$13,126 HKD
$1,673 USD
View
B+
Retailer 15
-
HK$15,880 HKD
$2,024 USD
View
Retailer 16
-
HK$16,280 HKD
$2,075 USD
View
Price last confirmed 12 days ago
B+
Retailer 17
-
HK$17,577 HKD
£1,764 GBP
View
B+
Retailer 18
-
HK$19,072 HKD
SGD 3,285 SGD
View
B+
Retailer 19
-
HK$19,269 HKD
$2,456 USD
View
B+
Retailer 20
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HK$19,504 HKD
$2,486 USD
View
B+
Retailer 21
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HK$19,895 HKD
$2,536 USD
View
B+
Retailer 22
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HK$20,014 HKD
$2,551 USD
View
B
Retailer 23
-
HK$21,821 HKD
£2,190 GBP
View
B
Retailer 24
-
HK$23,924 HKD
£2,401 GBP
View
Most Expensive
B
Brilliant Earth
15503724A · Oct 30
HK$24,008 HKD
$3,060 USD
View
24 more retailers have this diamond
Prices start from HK$4,872 HKDSave up to HK$19,136 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
1.51ct Princess
HK$4,872 HKD