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Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG593386843

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG593386843

Diamond specifications and retailer prices

From HK$2,699 HKD
$344 USD
As of October 30, 2026
Save HK$24,604 HKD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$27,303 HKD at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant 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 LG593386843 or 593386843. Listed at 23 retailers as of October 30, 2026, with a 912% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593386843
Dimensions7.83 × 5.74 × 3.92 mm
L/W Ratio1.36
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
7.83 mm5.74 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593386843
Side View
Table 62.0%Crown 42.4°Girdle: MediumPavilion 36°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
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$27,303 HKD|Low: HK$2,589 HKD|High: HK$27,303 HKD|Avg: HK$8,125 HKD
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
October 31, 2026
Retailer 3HK$2,699 HKD
Retailer 7HK$3,021 HKD
Retailer 4HK$3,342 HKD
Retailer 11HK$3,455 HKD
Retailer 10HK$4,488 HKD
Retailer 15HK$4,551 HKD
Retailer 14HK$5,750 HKD
Retailer 2HK$5,890 HKD
Retailer 9HK$6,009 HKD
Retailer 13HK$7,767 HKD
Retailer 16HK$8,065 HKD
Retailer 6HK$10,756 HKD
Retailer 5HK$12,639 HKD
Retailer 8HK$12,968 HKD
Retailer 12HK$13,143 HKD
Brilliant EarthHK$27,303 HKD

32 data points across 16 retailers

23 retailersHK$2,699 HKD to HK$27,303 HKD

A
Cheapest Retailer
-
HK$2,699 HKD
$344 USD
A
Retailer 2
-
HK$3,021 HKD
$385 USD
View
Final sale: no returns
A
Retailer 3
-
HK$3,130 HKD
$399 USD
View
A
Retailer 4
-
HK$3,342 HKD
$426 USD
View
A
Retailer 5
-
HK$3,342 HKD
$426 USD
View
A
Retailer 6
-
HK$3,455 HKD
£347 GBP
View
A
Retailer 7
-
HK$4,488 HKD
$572 USD
View
A
Retailer 8
-
HK$4,551 HKD
$580 USD
View
A
Retailer 9
-
HK$5,351 HKD
$682 USD
View
A
Retailer 10
-
HK$5,750 HKD
ZAR 11,839 ZAR
View
A
Retailer 11
-
HK$5,890 HKD
€715 EUR
View
A
Retailer 12
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HK$6,009 HKD
£603 GBP
View
A
Retailer 13
-
HK$7,767 HKD
A$1,523 AUD
View
B+
Retailer 14
-
HK$8,065 HKD
$1,028 USD
View
B+
Retailer 15
-
HK$8,089 HKD
$1,031 USD
View
B+
Retailer 16
-
HK$10,756 HKD
$1,371 USD
View
B+
Retailer 17
-
HK$10,838 HKD
£1,088 GBP
View
B+
Retailer 18
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HK$11,090 HKD
$1,413 USD
View
B+
Retailer 19
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HK$12,639 HKD
$1,611 USD
View
B+
Retailer 20
-
HK$12,968 HKD
$1,653 USD
View
B+
Retailer 21
-
HK$13,143 HKD
£1,319 GBP
View
B
Retailer 22
-
HK$27,303 HKD
$3,480 USD
View
Most Expensive
Brilliant Earth
21385297A · Oct 8
HK$27,303 HKD
$3,480 USD
View
Price last confirmed 23 days ago
22 more retailers have this diamond
Prices start from HK$2,699 HKDSave up to HK$24,604 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 Radiant
HK$2,699 HKD