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Marquise|Natural|GIA

1.52ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2556315187

Certificate GIA 2556315187

Diamond specifications and retailer prices

From $18,437 AUD
$12,921 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: $18,437 AUD at Adiamor
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 Adiamor

About this 1.52ct natural marquise diamond

This 1.52ct natural marquise sits in the one-and-a-half to two carat band, graded D 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 2556315187. Listed at a single retailer as of November 1, 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

1.52
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556315187
Dimensions11.35 × 5.99 × 3.58 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
11.35 mm5.99 mm1.52 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556315187
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.8%

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: Nov 1
Current: $20,333 AUD|Low: $13,655 AUD|High: $23,681 AUD|Avg: $17,780 AUD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
August 13, 2026
Retailer 5$13,655 AUD
Retailer 10$14,722 AUD
Retailer 4$15,405 AUD
Retailer 11$16,329 AUD
Retailer 7$17,593 AUD
Retailer 9$17,601 AUD
Retailer 3$18,778 AUD
Retailer 8$19,525 AUD
Retailer 2$19,528 AUD
Retailer 1$20,333 AUD
Retailer 6$23,681 AUD

50 data points across 11 retailers

1 retailer

B
Adiamor
D-79690121 · Nov 1
$18,437 AUD
$12,921 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
1.52ct Marquise
$18,437 AUD