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Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 5543528221

Certificate GIA 5543528221

Diamond specifications and retailer prices

From $3,827 USD
HK$29,900 HKD
As of November 1, 2026
Save $5,044 USD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,871 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543528221. Listed at 13 retailers as of October 28, 2026, with prices from $3,827 to $8,871, a $5,044 spread on the same certified stone. Queensmith lists it at $8,871. 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

1.51
Carat
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543528221
Dimensions7.60 × 5.85 × 4.07 mm
L/W Ratio1.30
Top View
7.60 mm5.85 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543528221
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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: Nov 1
Current: $8,871 USD|Low: $3,789 USD|High: $8,934 USD|Avg: $5,632 USD|+1.7%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$3,827 USD
Retailer 2$4,094 USD
Retailer 3$4,509 USD
Retailer 9$4,667 USD
Retailer 5$5,028 USD
Retailer 8$5,057 USD
Retailer 10$5,110 USD
Retailer 11$5,209 USD
Retailer 4$5,721 USD
Retailer 6$8,054 USD
Queensmith$8,871 USD

32 data points across 11 retailers

13 retailers$3,827 USD to $8,871 USD

A
Cheapest Retailer
-
$3,827 USD
HK$29,900 HKD
A
Retailer 2
-
$4,094 USD
₹389,880 INR
View
A
Retailer 3
-
$4,509 USD
SGD 6,093 SGD
View
A
Retailer 4
-
$4,667 USD
View
Final sale: no returns
A
Retailer 5
-
$4,688 USD
View
A
Retailer 6
-
$5,028 USD
£3,959 GBP
View
A
Retailer 7
-
$5,057 USD
View
A
Retailer 8
-
$5,110 USD
View
A
Retailer 9
-
$5,209 USD
View
B+
Retailer 10
-
$5,303 USD
A$8,158 AUD
View
B+
Retailer 11
-
$5,721 USD
€5,449 EUR
View
B+
Retailer 12
-
$8,054 USD
£6,342 GBP
View
Most Expensive
B
Queensmith
5543528221 · Oct 28
$8,871 USD
£6,985 GBP
View
12 more retailers have this diamond
Prices start from $3,827 USDSave up to $5,044 USD

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
1.51ct Cushion
$3,827 USD