Cushion|Natural|GIA

3.51ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 2557178397

Certificate GIA 2557178397

Diamond specifications and retailer prices

From $70,454 USD
As of November 5, 2026
Save $11,007 USD (14%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $81,461 USD at Yorxs · As of November 6, 2026
View at Yorxs

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five 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 2557178397. Listed at 5 retailers as of November 5, 2026, with prices from $70,454 to $81,461, a $11,007 spread on the same certified stone. Yorxs lists it at $81,461. 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

3.51
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557178397
Dimensions11.41 × 8.01 × 4.83 mm
L/W Ratio1.42
Top View
11.41 mm8.01 mm3.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557178397
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $73,100 USD|Low: $52,070 USD|High: $81,661 USD|Avg: $68,440 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Yorxs
November 6, 2026
Retailer 2$52,070 USD
Retailer 10$55,552 USD
Retailer 3$57,966 USD
Retailer 11$65,410 USD
Retailer 8$65,450 USD
Retailer 4$70,454 USD
Retailer 1$73,100 USD
Retailer 5$73,100 USD
Retailer 7$75,349 USD
Retailer 6$75,540 USD
Retailer 9$76,244 USD
Yorxs$81,461 USD

20 data points across 12 retailers

5 retailers$70,454 USD to $81,461 USD

B
Cheapest Retailer
-
$70,454 USD
B
Retailer 2
-
$73,100 USD
View
B
Retailer 3
-
$73,100 USD
View
B
Retailer 4
-
$75,540 USD
View
Most Expensive
B
Yorxs
622796265 · Nov 6
$81,461 USD
€77,582 EUR
View
4 more retailers have this diamond
Prices start from $70,454 USDSave up to $11,007 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.

B
3.51ct Cushion
$70,454 USD