Radiant|Lab Grown|IGI

1.35ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG681558901

Certificate IGI LG681558901

Diamond specifications and retailer prices

From $321 USD
Save $2,529 USD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,860 USD at Brilliant Earth
View at Brilliant Earth

About this 1.35ct lab-grown radiant diamond

This 1.35ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681558901 or 681558901. Listed at 24 retailers, with a 788% 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

1.35
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681558901
Dimensions7.54 × 5.55 × 3.74 mm
L/W Ratio1.36
Culet sizePointed
Top View
7.54 mm5.55 mm1.35 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681558901
Side View
Table 65.0%Crown 47.2°Girdle: MediumPavilion 35.5°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $2,860 USD|Low: $255 USD|High: $2,860 USD|Avg: $1,030 USD
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 1, 2026
Retailer 15$321 USD
Retailer 14$367 USD
Retailer 4$372 USD
Retailer 8$393 USD
Retailer 6$398 USD
Retailer 2$469 USD
Retailer 7$530 USD
Retailer 12$530 USD
Retailer 9$559 USD
Retailer 5$739 USD
Retailer 16$780 USD
Retailer 3$1,067 USD
Retailer 11$1,273 USD
Retailer 13$1,411 USD
Retailer 10$1,707 USD
Retailer 18$1,730 USD
Retailer 17$1,736 USD
Brilliant Earth$2,860 USD

41 data points across 18 retailers

24 retailers$321 USD to $2,850 USD

A
Cheapest Retailer
-
$321 USD
A
Retailer 2
-
$367 USD
View
A
Retailer 3
-
$372 USD
View
A
Retailer 4
-
$393 USD
View
A
Retailer 5
-
$398 USD
View
A
Retailer 6
-
$469 USD
£369 GBP
View
A
Retailer 7
-
$530 USD
View
A
Retailer 8
-
$530 USD
View
A
Retailer 9
-
$559 USD
View
A
Retailer 10
-
$739 USD
ZAR 11,936 ZAR
View
A
Retailer 11
-
$764 USD
View
A
Retailer 12
-
$782 USD
£616 GBP
View
B+
Retailer 13
-
$1,067 USD
A$1,641 AUD
View
B+
Retailer 14
-
$1,069 USD
View
B+
Retailer 15
-
$1,139 USD
View
B+
Retailer 16
-
$1,273 USD
A$1,958 AUD
View
B+
Retailer 17
-
$1,411 USD
View
B
Retailer 18
-
$1,569 USD
View
B
Retailer 19
-
$1,574 USD
View
B
Retailer 20
-
$1,707 USD
£1,344 GBP
View
B
Retailer 21
-
$1,730 USD
View
B+
Retailer 22
-
$1,736 USD
£1,367 GBP
View
B
Retailer 23
-
$2,850 USD
View
Most Expensive
B
Brilliant Earth
16257759A · Aug 22
$2,860 USD
View
Price last confirmed 39 days ago
23 more retailers have this diamond
Prices start from $321 USDSave up to $2,529 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.

A
1.35ct Radiant
$321 USD