Marquise|Natural|GIA

1.05ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 3555309315

Certificate GIA 3555309315

Diamond specifications and retailer prices

From $1,837 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $1,837 USD at The Diamond Guys
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 The Diamond Guys

About this 1.05ct natural marquise diamond

This 1.05ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555309315. Listed at a single retailer as of November 6, 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

1.05
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.3°
Pavilion angle41.34°
OriginNatural
Grading LabGIA
CertificateGIA 3555309315
Dimensions10.12 × 5.30 × 3.40 mm
L/W Ratio1.91
Culet sizeNone
Top View
10.12 mm5.30 mm1.05 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555309315
Side View
Table 57.0%Crown 37.3°Girdle: STK-THKPavilion 41.34°Culet: NoneDepth 64.1%

Caratlytics Score

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

Last verified: Nov 6
Current: $2,021 USD|Low: $1,254 USD|High: $2,474 USD|Avg: $1,890 USD|-10.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
The Diamond Guys
September 27, 2026
Retailer 6$1,254 USD
Retailer 3$1,488 USD
Retailer 4$1,593 USD
Retailer 8$1,641 USD
The Diamond Guys$1,837 USD
Retailer 2$1,975 USD
Retailer 1$2,021 USD
Retailer 7$2,230 USD
Retailer 9$2,263 USD
Retailer 5$2,428 USD

5 data points across 10 retailers

1 retailer

B+
The Diamond Guys
1959624996 · Nov 6
$1,837 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+
1.05ct Marquise
$1,837 USD