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Marquise|Natural|GIA

1.50ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 3555405223

Certificate GIA 3555405223

Diamond specifications and retailer prices

From $10,962 AUD
As of November 4, 2026
Save $8,497 AUD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $19,460 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded J 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 3555405223. Listed at 15 retailers as of November 4, 2026, with prices from $10,962 to $19,460, a $8,497 spread on the same certified stone. MOH London lists it at $19,460. 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

1.50
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555405223
Dimensions10.93 × 5.92 × 3.88 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Cloud, Needle
Top View
10.93 mm5.92 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555405223
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

How it works →
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 4
Current: $19,460 AUD|Low: $9,475 AUD|High: $19,617 AUD|Avg: $13,107 AUD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 8$9,475 AUD
Retailer 5$10,962 AUD
Retailer 17$11,067 AUD
Retailer 6$11,294 AUD
Retailer 7$11,294 AUD
Retailer 13$11,502 AUD
Retailer 14$11,658 AUD
Retailer 9$11,672 AUD
Retailer 4$11,806 AUD
Retailer 10$12,944 AUD
Retailer 16$13,454 AUD
Retailer 12$14,636 AUD
Retailer 15$14,638 AUD
Retailer 2$15,213 AUD
Retailer 3$15,416 AUD
Retailer 11$17,081 AUD
MOH London$19,460 AUD

10 data points across 17 retailers

15 retailers$10,962 AUD to $19,460 AUD

B
Cheapest Retailer
-
$10,962 AUD
B
Retailer 2
-
$11,067 AUD
View
B
Retailer 3
-
$11,502 AUD
View
B
Retailer 4
-
$11,658 AUD
View
Retailer 5
-
$11,709 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$11,806 AUD
View
B
Retailer 7
-
$12,684 AUD
View
B
Retailer 8
-
$12,879 AUD
View
B
Retailer 9
-
$12,944 AUD
View
B
Retailer 10
-
$13,454 AUD
View
C
Retailer 11
-
$14,636 AUD
View
C
Retailer 12
-
$14,638 AUD
View
B
Retailer 13
-
$15,213 AUD
View
C
Retailer 14
-
$17,081 AUD
View
Most Expensive
C
MOH London
565D9531F · Nov 4
$19,460 AUD
£10,528 GBP
View
14 more retailers have this diamond
Prices start from $10,962 AUDSave up to $8,497 AUD

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
1.50ct Marquise
$10,962 AUD