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Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG605337352

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

Certificate IGI LG605337352

Diamond specifications and retailer prices

From HK$2,275 HKD
$290 USD
As of October 30, 2026
Save HK$18,673 HKD (89%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$20,948 HKD at Brilliant Earth · As of October 30, 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 LG605337352 or 605337352. Listed at 25 retailers as of October 30, 2026, with prices from HK$2,275 to HK$20,948, a HK$18,673 spread on the same certified stone. Brilliant Earth lists it at HK$20,948. 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 angle46.9°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605337352
Dimensions8.05 × 5.77 × 3.84 mm
L/W Ratio1.40
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
8.05 mm5.77 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605337352
Side View
Table 67.0%Crown 46.9°Girdle: MediumPavilion 36.3°Culet: NoneDepth 66.6%

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$20,948 HKD|Low: HK$2,165 HKD|High: HK$23,851 HKD|Avg: HK$7,808 HKD|-9.8%
Brilliant Earth
Retailer 2
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Retailer 22
October 31, 2026
Retailer 6HK$2,275 HKD
Retailer 18HK$2,550 HKD
Retailer 3HK$2,636 HKD
Retailer 9HK$2,824 HKD
Retailer 14HK$2,824 HKD
Retailer 22HK$4,041 HKD
Retailer 11HK$4,637 HKD
Retailer 21HK$4,848 HKD
Retailer 8HK$4,864 HKD
Retailer 16HK$4,992 HKD
Retailer 2HK$5,223 HKD
Retailer 20HK$6,563 HKD
Retailer 10HK$7,579 HKD
Retailer 5HK$7,940 HKD
Retailer 7HK$9,070 HKD
Retailer 15HK$9,452 HKD
Retailer 13HK$10,851 HKD
Retailer 17HK$11,219 HKD
Retailer 19HK$11,369 HKD
Retailer 12HK$11,618 HKD
Retailer 4HK$17,888 HKD
Brilliant EarthHK$20,948 HKD

35 data points across 22 retailers

25 retailersHK$2,275 HKD to HK$20,948 HKD

A
Cheapest Retailer
-
HK$2,275 HKD
$290 USD
A
Retailer 2
-
HK$2,550 HKD
$325 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,636 HKD
$336 USD
View
A
Retailer 4
-
HK$2,824 HKD
$360 USD
View
A
Retailer 5
-
HK$2,824 HKD
$360 USD
View
A
Retailer 6
-
HK$4,041 HKD
$515 USD
View
A
Retailer 7
-
HK$4,637 HKD
$591 USD
View
A
Retailer 8
-
HK$4,848 HKD
ZAR 9,982 ZAR
View
A
Retailer 9
-
HK$4,864 HKD
$620 USD
View
A
Retailer 10
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HK$4,992 HKD
£501 GBP
View
A
Retailer 11
-
HK$5,223 HKD
€634 EUR
View
A
Retailer 12
-
HK$6,563 HKD
A$1,287 AUD
View
A
Retailer 13
-
HK$7,579 HKD
$966 USD
View
B+
Retailer 14
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HK$7,940 HKD
$1,012 USD
View
B+
Retailer 15
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HK$9,070 HKD
$1,156 USD
View
B+
Retailer 16
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HK$9,289 HKD
$1,184 USD
View
B+
Retailer 17
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HK$9,452 HKD
$1,205 USD
View
B+
Retailer 18
-
HK$10,372 HKD
$1,322 USD
View
B+
Retailer 19
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HK$10,851 HKD
$1,383 USD
View
B+
Retailer 20
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HK$11,189 HKD
£1,123 GBP
View
B+
Retailer 21
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HK$11,219 HKD
A$2,200 AUD
View
B+
Retailer 22
-
HK$11,369 HKD
£1,141 GBP
View
B+
Retailer 23
-
HK$11,618 HKD
$1,481 USD
View
Retailer 24
-
HK$17,888 HKD
$2,280 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
14717190A · Oct 30
HK$20,948 HKD
$2,670 USD
View
24 more retailers have this diamond
Prices start from HK$2,275 HKDSave up to HK$18,673 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$2,275 HKD