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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 $1,493 SGD
$1,168 USD
As of October 30, 2026
Save $4,570 SGD (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,063 SGD at Taylor and Hart · As of October 31, 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 $1,493 to $6,063, a $4,570 spread on the same certified stone. Taylor and Hart lists it at $6,063. 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: $2,511 SGD|Low: $1,433 SGD|High: $5,799 SGD|Avg: $3,301 SGD|-1.1%
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
November 1, 2026
Retailer 11$1,493 SGD
Retailer 4$1,624 SGD
Retailer 10$1,672 SGD
Retailer 12$1,731 SGD
Retailer 9$1,956 SGD
Retailer 1$2,511 SGD
Retailer 14$2,750 SGD
Retailer 7$3,183 SGD
Retailer 2$3,246 SGD
Retailer 3$3,412 SGD
Retailer 6$4,773 SGD
Retailer 13$5,013 SGD
Retailer 8$5,570 SGD
Retailer 5$5,799 SGD

45 data points across 14 retailers

18 retailers$1,493 SGD to $6,063 SGD

B+
Cheapest Retailer
-
$1,493 SGD
$1,168 USD
B+
Retailer 2
-
$1,624 SGD
$1,270 USD
View
Retailer 3
-
$1,672 SGD
$1,308 USD
View
Price last confirmed 21 days ago
Final sale: no returns
B+
Retailer 4
-
$1,675 SGD
$1,310 USD
View
Retailer 5
-
$1,731 SGD
$1,354 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$1,731 SGD
$1,354 USD
View
B+
Retailer 7
-
$1,956 SGD
$1,530 USD
View
B+
Retailer 8
-
$2,511 SGD
£1,547 GBP
View
B
Retailer 9
-
$2,750 SGD
$2,151 USD
View
B
Retailer 10
-
$3,183 SGD
ZAR 40,220 ZAR
View
B
Retailer 11
-
$3,246 SGD
$2,539 USD
View
B
Retailer 12
-
$3,412 SGD
$2,669 USD
View
B
Retailer 13
-
$4,773 SGD
£2,940 GBP
View
B
Retailer 14
-
$5,013 SGD
$3,921 USD
View
B
Retailer 15
-
$5,473 SGD
$4,281 USD
View
B
Retailer 16
-
$5,570 SGD
£3,431 GBP
View
B
Retailer 17
-
$5,799 SGD
View
Most Expensive
B
Taylor and Hart
APY38XB · Oct 31
$6,063 SGD
$4,742 USD
View
17 more retailers have this diamond
Prices start from $1,493 SGDSave up to $4,570 SGD

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
$1,493 SGD