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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG815698208

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

Certificate IGI LG815698208

Diamond specifications and retailer prices

From $334 CAD
$239 USD
As of October 30, 2026
Save $2,865 CAD (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,457 CAD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815698208 or 815698208. Listed at 14 retailers as of October 30, 2026, with a 858% 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

1.28
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815698208
Dimensions7.54 × 5.35 × 3.60 mm
L/W Ratio1.41
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
7.54 mm5.35 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815698208
Side View
Table 65.0%Crown 45°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 67.3%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $3,457 CAD|Low: $334 CAD|High: $4,596 CAD|Avg: $1,516 CAD|+5.4%
Rare Carat
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
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 16$334 CAD
Retailer 9$379 CAD
Retailer 4$387 CAD
Retailer 14$427 CAD
Retailer 2$470 CAD
Retailer 20$697 CAD
Retailer 17$752 CAD
Retailer 10$1,074 CAD
Retailer 8$1,098 CAD
Retailer 7$1,166 CAD
Retailer 11$1,250 CAD
Retailer 19$1,335 CAD
Retailer 5$1,341 CAD
Retailer 21$1,468 CAD
Retailer 3$1,536 CAD
Retailer 15$1,841 CAD
Retailer 12$2,190 CAD
Retailer 6$2,609 CAD
Retailer 13$2,808 CAD
Retailer 18$3,199 CAD
Rare Carat$3,457 CAD

23 data points across 21 retailers

14 retailers$334 CAD to $3,199 CAD

A
Cheapest Retailer
-
$334 CAD
$239 USD
A
Retailer 2
-
$387 CAD
$277 USD
View
A
Retailer 3
-
$470 CAD
£265 GBP
View
A
Retailer 4
-
$697 CAD
$499 USD
View
A
Retailer 5
-
$752 CAD
$538 USD
View
B+
Retailer 6
-
$1,335 CAD
$956 USD
View
Retailer 7
-
$1,341 CAD
$960 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$1,468 CAD
$1,051 USD
View
B+
Retailer 9
-
$1,536 CAD
$1,100 USD
View
B+
Retailer 10
-
$1,841 CAD
£1,038 GBP
View
B
Retailer 11
-
$2,609 CAD
$1,868 USD
View
B
Retailer 12
-
$2,808 CAD
$2,010 USD
View
B
Retailer 13
-
$3,199 CAD
$2,290 USD
View
Most Expensive
Rare Carat
VR-220174 · Oct 18
$3,457 CAD
$2,475 USD
View
Price last confirmed 14 days ago
13 more retailers have this diamond
Prices start from $334 CADSave up to $2,865 CAD

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
$334 CAD