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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG818644542

Shape and cutting style on the report: Cut cornered rectangular antique cut

Certificate IGI LG818644542

Diamond specifications and retailer prices

From HK$9,164 HKD
$1,168 USD
As of October 30, 2026
Save HK$28,044 HKD (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$37,208 HKD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818644542 or 818644542. Listed at 18 retailers as of October 30, 2026, with prices from HK$9,164 to HK$37,208, a HK$28,044 spread on the same certified stone. Taylor and Hart lists it at HK$37,208. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644542
Dimensions7.44 × 6.60 × 3.82 mm
L/W Ratio1.13
Culet sizeLarge
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
7.44 mm6.60 mm1.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644542
Side View
Table 71.0%Crown 36.2°Girdle: STK-THKPavilion 40.6°Culet: LargeDepth 57.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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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$15,285 HKD|Low: HK$8,795 HKD|High: HK$35,590 HKD|Avg: HK$20,276 HKD|-1.9%
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
October 31, 2026
Retailer 11HK$9,164 HKD
Retailer 4HK$9,964 HKD
Retailer 10HK$10,262 HKD
Retailer 12HK$10,623 HKD
Retailer 9HK$12,004 HKD
Retailer 1HK$15,285 HKD
Retailer 14HK$16,876 HKD
Retailer 7HK$19,533 HKD
Retailer 2HK$19,920 HKD
Retailer 3HK$20,940 HKD
Retailer 6HK$29,294 HKD
Retailer 13HK$30,763 HKD
Retailer 8HK$34,187 HKD
Retailer 5HK$35,590 HKD

44 data points across 14 retailers

18 retailersHK$9,164 HKD to HK$37,208 HKD

B+
Cheapest Retailer
-
HK$9,164 HKD
$1,168 USD
B+
Retailer 2
-
HK$9,964 HKD
$1,270 USD
View
Retailer 3
-
HK$10,262 HKD
$1,308 USD
View
Price last confirmed 21 days ago
Final sale: no returns
B+
Retailer 4
-
HK$10,278 HKD
$1,310 USD
View
Retailer 5
-
HK$10,623 HKD
$1,354 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
HK$10,623 HKD
$1,354 USD
View
B+
Retailer 7
-
HK$12,004 HKD
$1,530 USD
View
B+
Retailer 8
-
HK$15,285 HKD
£1,534 GBP
View
B
Retailer 9
-
HK$16,876 HKD
$2,151 USD
View
B
Retailer 10
-
HK$19,533 HKD
ZAR 40,220 ZAR
View
B
Retailer 11
-
HK$19,920 HKD
$2,539 USD
View
B
Retailer 12
-
HK$20,940 HKD
$2,669 USD
View
B
Retailer 13
-
HK$29,294 HKD
£2,940 GBP
View
B
Retailer 14
-
HK$30,763 HKD
$3,921 USD
View
B
Retailer 15
-
HK$33,588 HKD
$4,281 USD
View
B
Retailer 16
-
HK$34,187 HKD
£3,431 GBP
View
B
Retailer 17
-
HK$35,590 HKD
SGD 6,130 SGD
View
Most Expensive
B
Taylor and Hart
APY38XB · Oct 30
HK$37,208 HKD
$4,742 USD
View
17 more retailers have this diamond
Prices start from HK$9,164 HKDSave up to HK$28,044 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.

B+
1.51ct Radiant
HK$9,164 HKD