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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG800678621

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

Certificate IGI LG800678621

Diamond specifications and retailer prices

From ₹51,024 INR
HK$4,200 HKD
As of November 3, 2026
Save ₹2,64,078 INR (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: ₹3,15,101 INR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 LG800678621 or 800678621. Listed at 13 retailers as of November 2, 2026, with prices from ₹51,024 to ₹3,15,101, a ₹2,64,078 spread on the same certified stone. Brilliant Earth lists it at ₹3,15,101. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800678621
Dimensions8.14 × 5.39 × 3.46 mm
L/W Ratio1.51
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
8.14 mm5.39 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800678621
Side View
Table 63.0%Crown 40.2°Girdle: MediumPavilion 33.9°Culet: NoneDepth 64.2%

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 3
Current: ₹3,15,101 INR|Low: ₹51,024 INR|High: ₹3,15,101 INR|Avg: ₹1,15,266 INR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 4₹51,024 INR
Retailer 12₹62,451 INR
Retailer 8₹66,532 INR
Retailer 7₹71,254 INR
Retailer 6₹76,168 INR
Retailer 2₹79,842 INR
Retailer 10₹84,565 INR
Retailer 9₹1,01,561 INR
Retailer 11₹1,45,669 INR
Retailer 3₹1,70,363 INR
Retailer 5₹1,72,607 INR
Brilliant Earth₹3,15,101 INR

44 data points across 12 retailers

13 retailers₹51,024 INR to ₹3,15,101 INR

A
Cheapest Retailer
-
₹51,024 INR
HK$4,200 HKD
A
Retailer 2
-
₹62,451 INR
$658 USD
View
A
Retailer 3
-
₹66,532 INR
$701 USD
View
A
Retailer 4
-
₹71,254 INR
€715 EUR
View
A
Retailer 5
-
₹76,168 INR
ZAR 12,965 ZAR
View
A
Retailer 6
-
₹79,842 INR
£662 GBP
View
A
Retailer 7
-
₹84,565 INR
$891 USD
View
Retailer 8
-
₹1,01,561 INR
$1,070 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
₹1,45,669 INR
$1,535 USD
View
B+
Retailer 10
-
₹1,70,363 INR
$1,795 USD
View
B+
Retailer 11
-
₹1,72,607 INR
£1,432 GBP
View
Retailer 12
-
₹2,23,064 INR
$2,350 USD
View
Price last confirmed 75 days ago
Most Expensive
B
Brilliant Earth
20634873A · Nov 2
₹3,15,101 INR
$3,320 USD
View
12 more retailers have this diamond
Prices start from ₹51,024 INRSave up to ₹2,64,078 INR

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
₹51,024 INR