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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1549709882

Certificate GIA 1549709882

Diamond specifications and retailer prices

From $4,291 USD
As of November 2, 2026
Save $1,947 USD (31%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,238 USD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549709882. Listed at 4 retailers as of November 1, 2026, with prices from $4,291 to $6,238, a $1,947 spread on the same certified stone. 77 Diamonds lists it at $6,238. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37°
Pavilion angle55.1°
OriginNatural
Grading LabGIA
CertificateGIA 1549709882
Dimensions7.05 × 5.67 × 3.90 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural
Top View
7.05 mm5.67 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1549709882
Side View
Table 66.0%Crown 37°Girdle: THN-VTKPavilion 55.1°Culet: NoneDepth 68.7%

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 2
Current: $6,238 USD|Low: $3,982 USD|High: $6,256 USD|Avg: $4,914 USD|+9.4%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$4,291 USD
Retailer 2$4,644 USD
77 Diamonds$6,238 USD

36 data points across 3 retailers

4 retailers$4,291 USD to $6,238 USD

B+
Cheapest Retailer
-
$4,291 USD
B+
Retailer 2
-
$4,644 USD
View
B
Retailer 3
-
$4,783 USD
A$7,358 AUD
View
Most Expensive
B
77 Diamonds
CUSMBTTZU2WXD · Nov 1
$6,238 USD
£4,911 GBP
View
3 more retailers have this diamond
Prices start from $4,291 USDSave up to $1,947 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+
1.30ct Cushion
$4,291 USD