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Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG641494187

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

Certificate IGI LG641494187

Diamond specifications and retailer prices

From HK$2,228 HKD
$284 USD
As of October 30, 2026
Save HK$20,168 HKD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$22,396 HKD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

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 LG641494187 or 641494187. Listed at 24 retailers as of October 30, 2026, with prices from HK$2,228 to HK$22,396, a HK$20,168 spread on the same certified stone. Diamond Quarter lists it at HK$22,396. 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 angle33.2°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641494187
Dimensions8.26 × 5.61 × 3.82 mm
L/W Ratio1.47
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
8.26 mm5.61 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641494187
Side View
Table 61.0%Crown 33.2°Girdle: MediumPavilion 33.1°Culet: NoneDepth 68.1%

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$5,441 HKD|Low: HK$2,142 HKD|High: HK$19,771 HKD|Avg: HK$7,502 HKD|-14.7%
Retailer 1
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Retailer 23
October 31, 2026
Retailer 2HK$2,228 HKD
Retailer 9HK$2,495 HKD
Retailer 23HK$2,589 HKD
Retailer 3HK$2,770 HKD
Retailer 13HK$2,770 HKD
Retailer 12HK$3,153 HKD
Retailer 14HK$3,917 HKD
Retailer 19HK$4,001 HKD
Retailer 8HK$4,543 HKD
Retailer 6HK$4,809 HKD
Retailer 18HK$5,246 HKD
Retailer 1HK$5,441 HKD
Retailer 4HK$6,214 HKD
Retailer 17HK$7,119 HKD
Retailer 22HK$8,497 HKD
Retailer 7HK$9,815 HKD
Retailer 16HK$11,092 HKD
Retailer 11HK$11,362 HKD
Retailer 10HK$11,449 HKD
Retailer 15HK$11,837 HKD
Retailer 21HK$12,306 HKD
Retailer 20HK$16,947 HKD
Retailer 5HK$19,771 HKD

33 data points across 23 retailers

24 retailersHK$2,228 HKD to HK$22,396 HKD

A
Cheapest Retailer
-
HK$2,228 HKD
$284 USD
A
Retailer 2
-
HK$2,495 HKD
$318 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,589 HKD
$330 USD
View
A
Retailer 4
-
HK$2,770 HKD
$353 USD
View
A
Retailer 5
-
HK$2,770 HKD
$353 USD
View
A
Retailer 6
-
HK$3,153 HKD
£316 GBP
View
A
Retailer 7
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HK$3,917 HKD
View
A
Retailer 8
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HK$4,001 HKD
$510 USD
View
A
Retailer 9
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HK$4,543 HKD
$579 USD
View
A
Retailer 10
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HK$4,809 HKD
$613 USD
View
A
Retailer 11
-
HK$5,246 HKD
ZAR 10,803 ZAR
View
A
Retailer 12
-
HK$5,441 HKD
£546 GBP
View
A
Retailer 13
-
HK$6,214 HKD
$792 USD
View
A
Retailer 14
-
HK$7,119 HKD
A$1,396 AUD
View
B+
Retailer 15
-
HK$8,497 HKD
$1,083 USD
View
B+
Retailer 16
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HK$9,815 HKD
$1,251 USD
View
B+
Retailer 17
-
HK$11,092 HKD
$1,414 USD
View
B+
Retailer 18
-
HK$11,362 HKD
SGD 1,957 SGD
View
B+
Retailer 19
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HK$11,449 HKD
$1,459 USD
View
B+
Retailer 20
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HK$11,837 HKD
£1,188 GBP
View
B+
Retailer 21
-
HK$12,306 HKD
£1,235 GBP
View
Retailer 22
-
HK$16,947 HKD
$2,160 USD
View
Price last confirmed 12 days ago
B
Retailer 23
-
HK$19,771 HKD
$2,520 USD
View
Most Expensive
B
Diamond Quarter
1.51IFELG87DFCEN · Oct 31
HK$22,396 HKD
£2,248 GBP
View
23 more retailers have this diamond
Prices start from HK$2,228 HKDSave up to HK$20,168 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$2,228 HKD