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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 $363 SGD
$284 USD
As of October 30, 2026
Save $3,286 SGD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,649 SGD 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 $363 to $3,649, a $3,286 spread on the same certified stone. Diamond Quarter lists it at $3,649. 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: $887 SGD|Low: $349 SGD|High: $3,222 SGD|Avg: $1,222 SGD|-14.7%
Retailer 1
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Retailer 23
October 31, 2026
Retailer 2$363 SGD
Retailer 9$407 SGD
Retailer 23$422 SGD
Retailer 3$451 SGD
Retailer 13$451 SGD
Retailer 12$514 SGD
Retailer 14$638 SGD
Retailer 19$652 SGD
Retailer 8$740 SGD
Retailer 6$784 SGD
Retailer 18$855 SGD
Retailer 1$887 SGD
Retailer 4$1,012 SGD
Retailer 17$1,160 SGD
Retailer 22$1,385 SGD
Retailer 7$1,599 SGD
Retailer 16$1,807 SGD
Retailer 11$1,851 SGD
Retailer 10$1,865 SGD
Retailer 15$1,929 SGD
Retailer 21$2,005 SGD
Retailer 20$2,761 SGD
Retailer 5$3,222 SGD

33 data points across 23 retailers

24 retailers$363 SGD to $3,649 SGD

A
Cheapest Retailer
-
$363 SGD
$284 USD
A
Retailer 2
-
$407 SGD
$318 USD
View
Final sale: no returns
A
Retailer 3
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$422 SGD
$330 USD
View
A
Retailer 4
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$451 SGD
$353 USD
View
A
Retailer 5
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$451 SGD
$353 USD
View
A
Retailer 6
-
$514 SGD
£316 GBP
View
A
Retailer 7
-
$638 SGD
HK$3,900 HKD
View
A
Retailer 8
-
$652 SGD
$510 USD
View
A
Retailer 9
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$740 SGD
$579 USD
View
A
Retailer 10
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$784 SGD
$613 USD
View
A
Retailer 11
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$855 SGD
ZAR 10,803 ZAR
View
A
Retailer 12
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$887 SGD
£546 GBP
View
A
Retailer 13
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$1,012 SGD
$792 USD
View
A
Retailer 14
-
$1,160 SGD
A$1,396 AUD
View
B+
Retailer 15
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$1,385 SGD
$1,083 USD
View
B+
Retailer 16
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$1,599 SGD
$1,251 USD
View
B+
Retailer 17
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$1,807 SGD
$1,414 USD
View
B+
Retailer 18
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$1,851 SGD
View
B+
Retailer 19
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$1,865 SGD
$1,459 USD
View
B+
Retailer 20
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$1,929 SGD
£1,188 GBP
View
B+
Retailer 21
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$2,005 SGD
£1,235 GBP
View
Retailer 22
-
$2,761 SGD
$2,160 USD
View
Price last confirmed 13 days ago
B
Retailer 23
-
$3,222 SGD
$2,520 USD
View
Most Expensive
B
Diamond Quarter
1.51IFELG87DFCEN · Oct 31
$3,649 SGD
£2,248 GBP
View
23 more retailers have this diamond
Prices start from $363 SGDSave up to $3,286 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
$363 SGD