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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG815698215

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

Certificate IGI LG815698215

Diamond specifications and retailer prices

From $560 SGD
$438 USD
As of October 30, 2026
Save $3,697 SGD (87%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $5,050 SGD at Brilliant Earth · As of September 28, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815698215 or 815698215. Listed at 25 retailers as of October 30, 2026, with a 660% 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.4°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815698215
Dimensions8.03 × 5.95 × 3.68 mm
L/W Ratio1.35
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
8.03 mm5.95 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815698215
Side View
Table 68.0%Crown 24.4°Girdle: MediumPavilion 34.1°Culet: NoneDepth 61.8%

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: $4,257 SGD|Low: $560 SGD|High: $4,896 SGD|Avg: $1,894 SGD|-13.1%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 6
Retailer 7
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Retailer 11
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Retailer 17
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Retailer 23
November 1, 2026
Retailer 11$560 SGD
Retailer 18$626 SGD
Retailer 23$628 SGD
Retailer 10$694 SGD
Retailer 22$694 SGD
Retailer 21$876 SGD
Retailer 3$1,000 SGD
Retailer 17$1,090 SGD
Retailer 4$1,093 SGD
Retailer 13$1,148 SGD
Retailer 20$1,194 SGD
Retailer 6$1,360 SGD
Retailer 5$1,676 SGD
Retailer 7$2,026 SGD
Retailer 9$2,233 SGD
Retailer 8$2,276 SGD
Retailer 16$2,431 SGD
Retailer 14$2,509 SGD
Retailer 2$2,552 SGD
Retailer 19$2,672 SGD
Retailer 15$3,611 SGD
Brilliant Earth$4,257 SGD
Retailer 12$4,372 SGD

26 data points across 23 retailers

25 retailers$560 SGD to $4,257 SGD

A
Cheapest Retailer
-
$560 SGD
$438 USD
A
Retailer 2
-
$626 SGD
$490 USD
View
Final sale: no returns
A
Retailer 3
-
$628 SGD
$491 USD
View
A
Retailer 4
-
$694 SGD
$543 USD
View
A
Retailer 5
-
$694 SGD
$543 USD
View
A
Retailer 6
-
$876 SGD
$685 USD
View
A
Retailer 7
-
$1,000 SGD
$782 USD
View
A
Retailer 8
-
$1,090 SGD
€812 EUR
View
A
Retailer 9
-
$1,093 SGD
$855 USD
View
A
Retailer 10
-
$1,148 SGD
£707 GBP
View
A
Retailer 11
-
$1,194 SGD
ZAR 15,088 ZAR
View
A
Retailer 12
-
$1,360 SGD
$1,064 USD
View
B+
Retailer 13
-
$1,676 SGD
$1,311 USD
View
B+
Retailer 14
-
$2,026 SGD
£1,248 GBP
View
B+
Retailer 15
-
$2,233 SGD
$1,747 USD
View
B+
Retailer 16
-
$2,276 SGD
$1,781 USD
View
B+
Retailer 17
-
$2,416 SGD
$1,890 USD
View
B+
Retailer 18
-
$2,431 SGD
View
B
Retailer 19
-
$2,509 SGD
$1,963 USD
View
B
Retailer 20
-
$2,552 SGD
£1,572 GBP
View
B+
Retailer 21
-
$2,672 SGD
$2,090 USD
View
B
Retailer 22
-
$3,611 SGD
$2,825 USD
View
B
Retailer 23
-
$4,257 SGD
$3,330 USD
View
Retailer 24
-
$4,372 SGD
$3,420 USD
View
Price last confirmed 13 days ago
Most Expensive
Brilliant Earth
20988172A · Sep 28
$5,050 SGD
$3,950 USD
View
Price last confirmed 33 days ago
24 more retailers have this diamond
Prices start from $560 SGDSave up to $3,697 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.

A
1.51ct Radiant
$560 SGD