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Radiant|Lab Grown|IGI

1.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG836617943

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

Certificate IGI LG836617943

Diamond specifications and retailer prices

From ₹20,064 INR
As of November 4, 2026
Save ₹1,76,882 INR (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: ₹1,96,946 INR at Helzberg Diamonds · As of November 4, 2026
View at Helzberg 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617943 or 836617943. Listed at 20 retailers as of November 4, 2026, with prices from ₹20,064 to ₹1,96,946, a ₹1,76,882 spread on the same certified stone. Helzberg Diamonds lists it at ₹1,96,946. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617943
Dimensions8.00 × 5.43 × 3.57 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
8.00 mm5.43 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617943
Side View
Table 66.0%Crown 40.9°Girdle: MediumPavilion 35.1°Culet: NoneDepth 65.7%

Caratlytics Score

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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: ₹1,96,946 INR|Low: ₹20,064 INR|High: ₹2,33,761 INR|Avg: ₹73,880 INR
Helzberg Diamonds
Retailer 2
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Retailer 21
November 5, 2026
Retailer 6₹20,064 INR
Retailer 11₹22,430 INR
Retailer 3₹23,187 INR
Retailer 4₹24,796 INR
Retailer 8₹24,796 INR
Retailer 21₹25,647 INR
Retailer 7₹42,683 INR
Retailer 17₹42,777 INR
Retailer 18₹45,143 INR
Retailer 2₹45,427 INR
Retailer 10₹48,077 INR
Retailer 15₹60,664 INR
Retailer 16₹65,018 INR
Retailer 5₹79,024 INR
Retailer 9₹79,782 INR
Retailer 12₹84,797 INR
Retailer 14₹94,735 INR
Retailer 13₹99,277 INR
Retailer 20₹1,75,557 INR
Retailer 19₹1,76,977 INR
Helzberg Diamonds₹1,96,946 INR

29 data points across 21 retailers

20 retailers₹20,064 INR to ₹1,96,946 INR

A
Cheapest Retailer
-
₹20,064 INR
A
Retailer 2
-
₹22,430 INR
View
Final sale: no returns
A
Retailer 3
-
₹23,187 INR
View
A
Retailer 4
-
₹24,796 INR
View
Retailer 5
-
₹24,796 INR
View
Price last confirmed 11 days ago
A
Retailer 6
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₹42,683 INR
View
A
Retailer 7
-
₹42,777 INR
View
A
Retailer 8
-
₹45,143 INR
View
A
Retailer 9
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₹45,427 INR
View
A
Retailer 10
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₹48,077 INR
View
A
Retailer 11
-
₹60,664 INR
View
A
Retailer 12
-
₹65,018 INR
View
B+
Retailer 13
-
₹79,024 INR
View
B+
Retailer 14
-
₹79,782 INR
View
B+
Retailer 15
-
₹84,797 INR
View
B+
Retailer 16
-
₹93,883 INR
View
B+
Retailer 17
-
₹99,277 INR
View
Retailer 18
-
₹1,75,557 INR
View
Price last confirmed 18 days ago
B
Retailer 19
-
₹1,76,977 INR
View
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHNPKJ · Nov 4
₹1,96,946 INR
$2,081 USD
View
19 more retailers have this diamond
Prices start from ₹20,064 INRSave up to ₹1,76,882 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
₹20,064 INR