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Radiant|Lab Grown|IGI

1.64ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG600377774

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

Certificate IGI LG600377774

Diamond specifications and retailer prices

From $412 SGD
$322 USD
As of October 30, 2026
Save $3,551 SGD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,963 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.64ct lab-grown radiant diamond

This 1.64ct 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 LG600377774 or 600377774. Listed at 25 retailers as of October 29, 2026, with prices from $412 to $3,963, a $3,551 spread on the same certified stone. Brilliant Earth lists it at $3,963. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600377774
Dimensions9.06 × 5.84 × 3.68 mm
L/W Ratio1.55
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
9.06 mm5.84 mm1.64 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600377774
Side View
Table 64.0%Crown 41.2°Girdle: MediumPavilion 32°Culet: NoneDepth 63.0%

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: $3,963 SGD|Low: $412 SGD|High: $3,989 SGD|Avg: $1,599 SGD|-0.6%
Brilliant Earth
Retailer 2
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Retailer 24
October 30, 2026
Retailer 6$412 SGD
Retailer 10$460 SGD
Retailer 16$478 SGD
Retailer 3$510 SGD
Retailer 21$510 SGD
Retailer 23$573 SGD
Retailer 20$710 SGD
Retailer 22$824 SGD
Retailer 11$828 SGD
Retailer 7$846 SGD
Retailer 19$877 SGD
Retailer 2$912 SGD
Retailer 18$1,190 SGD
Retailer 4$1,497 SGD
Retailer 8$1,515 SGD
Retailer 14$1,636 SGD
Retailer 24$1,641 SGD
Retailer 9$1,699 SGD
Retailer 15$1,962 SGD
Retailer 5$1,987 SGD
Retailer 12$2,024 SGD
Retailer 13$2,057 SGD
Retailer 17$3,068 SGD
Brilliant Earth$3,963 SGD

40 data points across 24 retailers

25 retailers$412 SGD to $3,963 SGD

A
Cheapest Retailer
-
$412 SGD
$322 USD
A
Retailer 2
-
$460 SGD
$360 USD
View
Final sale: no returns
A
Retailer 3
-
$478 SGD
$374 USD
View
A
Retailer 4
-
$510 SGD
$399 USD
View
A
Retailer 5
-
$510 SGD
$399 USD
View
A
Retailer 6
-
$573 SGD
HK$3,500 HKD
View
A
Retailer 7
-
$710 SGD
$555 USD
View
Retailer 8
-
$824 SGD
€614 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
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$828 SGD
$648 USD
View
A
Retailer 10
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$846 SGD
$662 USD
View
A
Retailer 11
-
$877 SGD
ZAR 11,088 ZAR
View
A
Retailer 12
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$912 SGD
£562 GBP
View
A
Retailer 13
-
$1,190 SGD
A$1,432 AUD
View
A
Retailer 14
-
$1,497 SGD
$1,171 USD
View
B+
Retailer 15
-
$1,515 SGD
$1,185 USD
View
B+
Retailer 16
-
$1,636 SGD
View
B+
Retailer 17
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$1,641 SGD
$1,284 USD
View
B+
Retailer 18
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$1,699 SGD
$1,329 USD
View
B+
Retailer 19
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$1,808 SGD
$1,414 USD
View
B+
Retailer 20
-
$1,962 SGD
$1,535 USD
View
B+
Retailer 21
-
$1,987 SGD
£1,224 GBP
View
B+
Retailer 22
-
$2,024 SGD
$1,583 USD
View
B+
Retailer 23
-
$2,057 SGD
£1,267 GBP
View
Retailer 24
-
$3,068 SGD
$2,400 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
19055686A · Oct 29
$3,963 SGD
$3,100 USD
View
24 more retailers have this diamond
Prices start from $412 SGDSave up to $3,551 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
1.64ct Radiant
$412 SGD