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Cushion|Lab Grown|GCAL

5.18ct D FL Cushion Lab Grown Diamond

ID • D/FL

Diamond specifications and retailer prices

From ₹9,00,411 INR
$9,483 USD
As of October 31, 2026
Save ₹21,02,763 INR (70%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: ₹30,03,174 INR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 5.18ct lab-grown cushion diamond

This 5.18ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GCAL. Listed at 6 retailers as of October 31, 2026, with prices from ₹9,00,411 to ₹30,03,174, a ₹21,02,763 spread on the same certified stone. Blue Nile lists it at ₹30,03,174. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.18
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions11.78 × 8.77 × 6.15 mm
L/W Ratio1.34
Top View
11.78 mm8.77 mm5.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL
Side View
Table 61.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 70.1%

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 31
Current: ₹30,03,174 INR|Low: ₹9,00,411 INR|High: ₹1,37,95,286 INR|Avg: ₹32,09,052 INR|-36.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 6₹9,00,411 INR
Retailer 3₹10,67,903 INR
Retailer 2₹18,24,836 INR
Retailer 5₹28,55,830 INR
Blue Nile₹30,03,174 INR
Retailer 4₹55,06,151 INR

17 data points across 6 retailers

6 retailers₹9,00,411 INR to ₹30,03,174 INR

A
Cheapest Retailer
-
₹9,00,411 INR
$9,483 USD
A
Retailer 2
-
₹9,61,084 INR
$10,122 USD
View
B+
Retailer 3
-
₹18,24,836 INR
£15,133 GBP
View
B
Retailer 4
-
₹28,55,830 INR
$30,077 USD
View
Most Expensive
B
Blue Nile
30235026 · Oct 31
₹30,03,174 INR
$31,629 USD
View
4 more retailers have this diamond
Prices start from ₹9,00,411 INRSave up to ₹21,02,763 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
5.18ct Cushion
₹9,00,411 INR