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Radiant|Lab Grown|IGI

1.60ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG618488008

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

Certificate IGI LG618488008

Diamond specifications and retailer prices

From $302 USD
As of October 27, 2026
Save $3,368 USD (92%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $3,670 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.6ct lab-grown radiant diamond

This 1.6ct 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 LG618488008 or 618488008. Listed at 29 retailers as of October 27, 2026, with prices from $302 to $3,670, a $3,368 spread on the same certified stone. Brilliant Earth lists it at $3,670. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618488008
Dimensions5.82 × 5.82 × 3.91 mm
L/W Ratio1.00
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
5.82 mm5.82 mm1.60 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618488008
Side View
Table 63.0%Crown 36.8°Girdle: MediumPavilion 34.2°Culet: NoneDepth 67.2%

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 27
Current: $3,670 USD|Low: $302 USD|High: $3,670 USD|Avg: $1,063 USD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 21
October 30, 2026
Retailer 21$302 USD
Retailer 17$337 USD
Retailer 9$435 USD
Retailer 3$530 USD
Retailer 18$530 USD
Retailer 19$612 USD
Retailer 7$637 USD
Retailer 16$644 USD
Retailer 2$665 USD
Retailer 8$845 USD
Retailer 15$874 USD
Retailer 4$1,127 USD
Retailer 20$1,151 USD
Retailer 11$1,252 USD
Retailer 12$1,262 USD
Retailer 6$1,441 USD
Retailer 13$1,510 USD
Retailer 5$1,520 USD
Retailer 10$1,530 USD
Retailer 14$1,663 USD
Brilliant Earth$3,670 USD

35 data points across 21 retailers

29 retailers$302 USD to $3,670 USD

A
Cheapest Retailer
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$302 USD
Retailer 2
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$302 USD
View
Price last confirmed 21 days ago
Retailer 3
-
$315 USD
View
Price last confirmed 30 days ago
A
Retailer 4
-
$337 USD
View
Final sale: no returns
Retailer 5
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$365 USD
View
Price last confirmed 32 days ago
Retailer 6
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$375 USD
View
Price last confirmed 26 days ago
Retailer 7
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$385 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
$435 USD
HK$3,400 HKD
View
A
Retailer 9
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$530 USD
View
A
Retailer 10
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$530 USD
View
A
Retailer 11
-
$612 USD
€583 EUR
View
A
Retailer 12
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$637 USD
View
A
Retailer 13
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$644 USD
ZAR 10,402 ZAR
View
A
Retailer 14
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$665 USD
£524 GBP
View
A
Retailer 15
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$845 USD
View
A
Retailer 16
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$874 USD
A$1,344 AUD
View
A
Retailer 17
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$1,127 USD
View
B+
Retailer 18
-
$1,151 USD
View
Retailer 19
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$1,205 USD
View
Price last confirmed 19 days ago
B+
Retailer 20
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$1,205 USD
View
B+
Retailer 21
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$1,252 USD
View
Retailer 22
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$1,255 USD
View
Price last confirmed 29 days ago
B+
Retailer 23
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$1,262 USD
SGD 1,705 SGD
View
B+
Retailer 24
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$1,441 USD
View
B+
Retailer 25
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$1,510 USD
£1,189 GBP
View
B+
Retailer 26
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$1,520 USD
View
Retailer 27
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$1,530 USD
A$2,354 AUD
View
Price last confirmed 27 days ago
B+
Retailer 28
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$1,663 USD
View
Most Expensive
B
Brilliant Earth
9085934A · Oct 29
$3,670 USD
View
28 more retailers have this diamond
Prices start from $302 USDSave up to $3,368 USD

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
1.60ct Radiant
$302 USD