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1.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG778645865

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645865

Diamond specifications and retailer prices

From ₹21,258 INR
As of November 5, 2026
Save ₹1,32,744 INR (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: ₹1,54,002 INR at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778645865 or 778645865. Listed at 19 retailers as of November 5, 2026, with prices from ₹21,258 to ₹1,54,002, a ₹1,32,744 spread on the same certified stone. Brilliant Earth lists it at ₹1,54,002. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.55
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645865
Dimensions7.39 × 7.43 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.39 mm7.43 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645865
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: ₹1,54,002 INR|Low: ₹20,408 INR|High: ₹1,54,002 INR|Avg: ₹55,790 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
Retailer 13
November 6, 2026
Retailer 10₹21,258 INR
Retailer 7₹23,714 INR
Retailer 3₹24,659 INR
Retailer 12₹26,265 INR
Retailer 11₹35,430 INR
Retailer 8₹43,744 INR
Retailer 6₹48,374 INR
Retailer 13₹50,358 INR
Retailer 5₹76,907 INR
Retailer 4₹84,560 INR
Retailer 2₹84,843 INR
Retailer 9₹1,05,912 INR
Brilliant Earth₹1,54,002 INR

43 data points across 13 retailers

19 retailers₹21,258 INR to ₹1,54,002 INR

A
Cheapest Retailer
-
₹21,258 INR
A
Retailer 2
-
₹23,714 INR
View
Final sale: no returns
A
Retailer 3
-
₹24,659 INR
View
A
Retailer 4
-
₹26,265 INR
View
Retailer 5
-
₹26,265 INR
View
Price last confirmed 21 days ago
A
Retailer 6
-
₹29,005 INR
View
B+
Retailer 7
-
₹35,430 INR
View
A
Retailer 8
-
₹43,744 INR
View
A
Retailer 9
-
₹44,028 INR
View
A
Retailer 10
-
₹48,374 INR
View
B+
Retailer 11
-
₹50,358 INR
View
Retailer 12
-
₹76,907 INR
View
Price last confirmed 58 days ago
B
Retailer 13
-
₹84,560 INR
View
B
Retailer 14
-
₹84,843 INR
View
B
Retailer 15
-
₹85,126 INR
View
B
Retailer 16
-
₹89,473 INR
View
Retailer 17
-
₹1,05,912 INR
View
Price last confirmed 8 days ago
B
Retailer 18
-
₹1,20,179 INR
View
Most Expensive
B
Brilliant Earth
18623571A · Nov 5
₹1,54,002 INR
$1,630 USD
View
18 more retailers have this diamond
Prices start from ₹21,258 INRSave up to ₹1,32,744 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
1.55ct Round
₹21,258 INR