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Marquise|Natural|GIA

1.03ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 1508837337

Certificate GIA 1508837337

Diamond specifications and retailer prices

From €3,185 EUR
SGD 4,827 SGD
As of October 31, 2026
Save €1,842 EUR (37%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €5,027 EUR at Diamond Quarter · As of October 30, 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 October 30, 2026, with prices from €3,185 to €5,027, a €1,842 spread on the same certified stone. Diamond Quarter lists it at €5,027. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €5,027 EUR|Low: €3,185 EUR|High: €5,027 EUR|Avg: €4,111 EUR
Diamond Quarter
Retailer 2
October 13, 2026
Retailer 2€3,185 EUR
Diamond Quarter€5,027 EUR

4 data points across 2 retailers

2 retailers€3,185 EUR to €5,027 EUR

B
Cheapest Retailer
-
€3,185 EUR
SGD 4,827 SGD
Most Expensive
C
Diamond Quarter
1.03SI1H55095015KG · Oct 30
€5,027 EUR
£4,439 GBP
View
1 more retailer has this diamond
Prices start from €3,185 EURSave up to €1,842 EUR

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
€3,185 EUR