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Marquise|Natural|GIA

1.50ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 8652944

Certificate GIA 8652944

Diamond specifications and retailer prices

From $6,075 AUD
As of November 6, 2026
Save $7,338 AUD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,413 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 8652944. Listed at 15 retailers as of November 5, 2026, with prices from $6,075 to $13,413, a $7,338 spread on the same certified stone. NZ Jewellers lists it at $13,413. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 8652944
Dimensions10.53 × 6.03 × 3.83 mm
L/W Ratio1.75
Culet sizeSmall
Top View
10.53 mm6.03 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 8652944
Side View
Table 55.0%CrownGirdle: THK-ETKPavilionCulet: SmallDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $13,413 AUD|Low: $5,076 AUD|High: $13,413 AUD|Avg: $8,225 AUD
NZ Jewellers
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 9$5,076 AUD
Retailer 3$6,075 AUD
Retailer 14$6,335 AUD
Retailer 13$6,833 AUD
Retailer 4$7,265 AUD
Retailer 15$7,265 AUD
Retailer 17$7,265 AUD
Retailer 16$7,613 AUD
Retailer 7$7,654 AUD
Retailer 10$7,747 AUD
Retailer 8$7,798 AUD
Retailer 5$8,383 AUD
Retailer 2$8,520 AUD
Retailer 6$8,850 AUD
Retailer 11$9,785 AUD
Retailer 12$12,738 AUD
NZ Jewellers$13,413 AUD

35 data points across 17 retailers

15 retailers$6,075 AUD to $13,413 AUD

B+
Cheapest Retailer
-
$6,075 AUD
B+
Retailer 2
-
$6,335 AUD
View
B+
Retailer 3
-
$6,833 AUD
View
Retailer 4
-
$7,265 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$7,265 AUD
View
B+
Retailer 6
-
$7,265 AUD
View
B
Retailer 7
-
$7,613 AUD
View
B
Retailer 8
-
$7,654 AUD
View
B+
Retailer 9
-
$7,747 AUD
View
B
Retailer 10
-
$8,383 AUD
View
B
Retailer 11
-
$8,520 AUD
View
Retailer 12
-
$8,850 AUD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$9,785 AUD
View
C
Retailer 14
-
$12,738 AUD
View
Most Expensive
C
NZ Jewellers
0fe7e774-67d5-40fc-b427-7596a67f1f6c · Nov 5
$13,413 AUD
$9,216 USD
View
14 more retailers have this diamond
Prices start from $6,075 AUDSave up to $7,338 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
$6,075 AUD