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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816602405

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

Certificate IGI LG816602405

Diamond specifications and retailer prices

From ₹31,958 INR
£265 GBP
As of November 2, 2026
Save ₹1,85,386 INR (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: ₹2,34,902 INR 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 LG816602405 or 816602405. Listed at 9 retailers as of November 2, 2026, with a 580% 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816602405
Dimensions7.74 × 5.26 × 3.72 mm
L/W Ratio1.47
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
7.74 mm5.26 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816602405
Side View
Table 62.0%Crown 38.8°Girdle: MediumPavilion 39.4°Culet: NoneDepth 70.7%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 2
Current: ₹2,34,902 INR|Low: ₹25,762 INR|High: ₹3,12,254 INR|Avg: ₹1,08,032 INR|+5.4%
Rare Carat
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
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Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 18
November 2, 2026
Retailer 5₹25,762 INR
Retailer 10₹29,042 INR
Retailer 2₹31,958 INR
Retailer 15₹47,360 INR
Retailer 3₹64,824 INR
Retailer 7₹72,948 INR
Retailer 4₹74,635 INR
Retailer 18₹79,256 INR
Retailer 8₹84,944 INR
Retailer 14₹90,734 INR
Retailer 17₹91,114 INR
Retailer 16₹1,04,392 INR
Retailer 6₹1,22,946 INR
Retailer 11₹1,24,393 INR
Retailer 9₹1,48,789 INR
Retailer 12₹1,90,769 INR
Retailer 13₹2,17,344 INR
Rare Carat₹2,34,902 INR

22 data points across 18 retailers

9 retailers₹31,958 INR to ₹2,17,344 INR

A+
Cheapest Retailer
-
₹31,958 INR
£265 GBP
A
Retailer 2
-
₹47,360 INR
$499 USD
View
B+
Retailer 3
-
₹90,734 INR
$956 USD
View
Retailer 4
-
₹91,114 INR
$960 USD
View
Price last confirmed 11 days ago
B+
Retailer 5
-
₹1,04,392 INR
$1,100 USD
View
B+
Retailer 6
-
₹1,24,393 INR
£1,032 GBP
View
B
Retailer 7
-
₹1,90,769 INR
$2,010 USD
View
B
Retailer 8
-
₹2,17,344 INR
$2,290 USD
View
Most Expensive
Rare Carat
PD-217234 · Oct 18
₹2,34,902 INR
$2,475 USD
View
Price last confirmed 15 days ago
8 more retailers have this diamond
Prices start from ₹31,958 INRSave up to ₹1,85,386 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
₹31,958 INR