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Cushion|Natural|GIA

1.30ct F SI2 Cushion Natural Diamond

ID • F/SI2 • GIA 6157745197

Certificate GIA 6157745197

Diamond specifications and retailer prices

From $3,420 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $3,420 USD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 6157745197. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.30
Carat
F
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6157745197
Dimensions6.15 × 6.12 × 4.19 mm
L/W Ratio1.00
Top View
6.15 mm6.12 mm1.30 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6157745197
Side View
Table 62.0%CrownGirdle: SLIPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $3,420 USD|Low: $3,420 USD|High: $4,160 USD|Avg: $3,802 USD|-13.6%
October 30, 2026
Brilliant Earth$3,420 USD

10 data points across 1 retailer

1 retailer

B+
Brilliant Earth
14401206B · Nov 2
$3,420 USD
View

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+
1.30ct Cushion
$3,420 USD