Marquise|Natural|GIA

1.03ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 1508837337

Certificate GIA 1508837337

Diamond specifications and retailer prices

From $3,591 USD
As of November 5, 2026
Save $2,047 USD (36%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $5,638 USD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1508837337. Listed at 2 retailers as of November 5, 2026, with prices from $3,591 to $5,638, a $2,047 spread on the same certified stone. Diamond Quarter lists it at $5,638. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.03
Carat
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1508837337
Dimensions5.33 × 9.84 × 3.37 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Cloud, Needle
Top View
5.33 mm9.84 mm1.03 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1508837337
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $5,638 USD|Low: $3,571 USD|High: $5,638 USD|Avg: $4,612 USD
Diamond Quarter
Retailer 2
November 5, 2026
Retailer 2$3,591 USD
Diamond Quarter$5,638 USD

6 data points across 2 retailers

2 retailers$3,591 USD to $5,638 USD

B
Cheapest Retailer
-
$3,591 USD
Most Expensive
C
Diamond Quarter
1.03SI1H55095015KG · Nov 5
$5,638 USD
£4,439 GBP
View
1 more retailer has this diamond
Prices start from $3,591 USDSave up to $2,047 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
1.03ct Marquise
$3,591 USD