CaratHunter
Plans
Radiant|Lab Grown|IGI

1.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG770634043

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

Certificate IGI LG770634043

Diamond specifications and retailer prices

From $2,360 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: $2,360 USD at Shane Co
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Shane Co

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770634043 or 770634043. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770634043
Dimensions7.87 × 5.33 × 3.60 mm
L/W Ratio1.48
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
7.87 mm5.33 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770634043
Side View
Table 62.0%Crown 45.2°Girdle: MediumPavilion 36.2°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,467 USD|Low: $406 USD|High: $2,580 USD|Avg: $1,120 USD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Shane Co
September 18, 2026
Retailer 5$486 USD
Retailer 9$597 USD
Retailer 3$710 USD
Retailer 4$735 USD
Retailer 2$969 USD
Retailer 8$1,305 USD
Retailer 1$1,467 USD
Retailer 7$1,524 USD
Retailer 6$1,538 USD
Retailer 10$2,172 USD
Shane Co$2,360 USD

16 data points across 11 retailers

1 retailer

B
Shane Co
26E0TPZ · Oct 30
$2,360 USD
View

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.

B
1.28ct Radiant
$2,360 USD