Radiant|Lab Grown|IGI

1.28ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG649472587

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

Certificate IGI LG649472587

Diamond specifications and retailer prices

From $297 USD
As of November 4, 2026
Save $2,333 USD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,630 USD at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG649472587 or 649472587. Listed at 22 retailers as of November 4, 2026, with prices from $297 to $2,630, a $2,333 spread on the same certified stone. Do Amore Diamonds lists it at $2,630. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.4°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649472587
Dimensions7.38 × 5.48 × 3.70 mm
L/W Ratio1.35
Culet sizePointed
Top View
7.38 mm5.48 mm1.28 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649472587
Side View
Table 63.0%Crown 46.4°Girdle: MediumPavilion 35.4°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
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: Nov 4
Current: $2,630 USD|Low: $285 USD|High: $2,630 USD|Avg: $1,011 USD
Do Amore Diamonds
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
November 5, 2026
Retailer 7$297 USD
Retailer 6$344 USD
Retailer 3$368 USD
Retailer 5$368 USD
Retailer 2$426 USD
Retailer 14$525 USD
Retailer 11$700 USD
Retailer 9$719 USD
Retailer 10$998 USD
Retailer 15$1,051 USD
Retailer 4$1,130 USD
Retailer 16$1,245 USD
Retailer 8$1,305 USD
Retailer 12$1,626 USD
Retailer 13$2,210 USD
Do Amore Diamonds$2,630 USD

35 data points across 16 retailers

22 retailers$297 USD to $2,630 USD

A
Cheapest Retailer
-
$297 USD
A
Retailer 2
-
$337 USD
View
Final sale: no returns
A
Retailer 3
-
$344 USD
View
Retailer 4
-
$368 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$368 USD
View
A
Retailer 6
-
$426 USD
View
A
Retailer 7
-
$490 USD
View
A
Retailer 8
-
$525 USD
View
A
Retailer 9
-
$528 USD
View
A
Retailer 10
-
$700 USD
View
A
Retailer 11
-
$710 USD
View
A
Retailer 12
-
$719 USD
View
B+
Retailer 13
-
$998 USD
View
Retailer 14
-
$1,051 USD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
$1,130 USD
View
Retailer 16
-
$1,245 USD
View
Price last confirmed 16 days ago
B+
Retailer 17
-
$1,305 USD
View
B
Retailer 18
-
$1,466 USD
View
B
Retailer 19
-
$1,584 USD
View
B+
Retailer 20
-
$1,626 USD
View
B
Retailer 21
-
$2,210 USD
View
Most Expensive
B
Do Amore Diamonds
27-D4D6C7715 · Nov 5
$2,630 USD
View
21 more retailers have this diamond
Prices start from $297 USDSave up to $2,333 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
1.28ct Radiant
$297 USD