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Cushion|Natural|GIA

1.50ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6551160529

Certificate GIA 6551160529

Diamond specifications and retailer prices

From ₹5,54,128 INR
As of November 6, 2026
Save ₹4,59,363 INR (45%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: ₹10,49,650 INR at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551160529. Listed at 20 retailers as of November 6, 2026, with a 83% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551160529
Dimensions7.96 × 5.95 × 3.91 mm
L/W Ratio1.34
Top View
7.96 mm5.95 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551160529
Side View
Table 67.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 65.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: ₹10,49,650 INR|Low: ₹5,49,338 INR|High: ₹10,60,385 INR|Avg: ₹7,51,505 INR|-1.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 5₹5,54,128 INR
Retailer 12₹5,82,116 INR
Retailer 8₹5,99,397 INR
Retailer 7₹6,38,656 INR
Retailer 15₹6,59,131 INR
Retailer 4₹6,74,909 INR
Retailer 11₹6,75,285 INR
Retailer 6₹6,81,859 INR
Retailer 10₹6,84,301 INR
Retailer 2₹6,84,771 INR
Retailer 16₹7,46,570 INR
Retailer 3₹7,57,183 INR
Retailer 13₹7,94,281 INR
Retailer 14₹8,92,052 INR
Retailer 9₹10,13,491 INR
Queensmith₹10,49,650 INR

22 data points across 16 retailers

20 retailers₹5,54,128 INR to ₹10,13,491 INR

B+
Cheapest Retailer
-
₹5,54,128 INR
B+
Retailer 2
-
₹5,82,116 INR
View
B+
Retailer 3
-
₹5,99,397 INR
View
B+
Retailer 4
-
₹6,38,656 INR
View
Retailer 5
-
₹6,38,844 INR
View
Price last confirmed 26 days ago
B+
Retailer 6
-
₹6,59,131 INR
View
B+
Retailer 7
-
₹6,74,909 INR
View
Final sale: no returns
B+
Retailer 8
-
₹6,75,285 INR
View
B+
Retailer 9
-
₹6,75,567 INR
View
Retailer 10
-
₹6,81,859 INR
View
Price last confirmed 9 days ago
B+
Retailer 11
-
₹6,84,301 INR
View
B+
Retailer 12
-
₹6,84,771 INR
View
Retailer 13
-
₹7,26,847 INR
View
Price last confirmed 34 days ago
B+
Retailer 14
-
₹7,46,570 INR
View
B+
Retailer 15
-
₹7,47,697 INR
View
B+
Retailer 16
-
₹7,57,183 INR
View
B+
Retailer 17
-
₹7,94,281 INR
View
B
Retailer 18
-
₹8,92,052 INR
View
B
Retailer 19
-
₹10,13,491 INR
View
Most Expensive
Queensmith
6551160529 · Oct 28
₹10,49,650 INR
£8,800 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from ₹5,54,128 INRSave up to ₹4,59,363 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.

B+
1.50ct Cushion
₹5,54,128 INR