CaratHunter
Plans
Marquise|Natural|GIA

1.50ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 5543781996

Certificate GIA 5543781996

Diamond specifications and retailer prices

From $7,749 AUD
As of November 4, 2026
Save $8,655 AUD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $16,404 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543781996. Listed at 13 retailers as of November 4, 2026, with prices from $7,749 to $16,404, a $8,655 spread on the same certified stone. NZ Jewellers lists it at $16,404. 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

1.50
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5543781996
Dimensions11.62 × 5.86 × 3.62 mm
L/W Ratio1.98
Top View
11.62 mm5.86 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5543781996
Side View
Table 55.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 61.8%

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 4
Current: $9,773 AUD|Low: $7,749 AUD|High: $14,624 AUD|Avg: $9,629 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$7,749 AUD
Retailer 9$7,926 AUD
Retailer 5$8,270 AUD
Retailer 7$8,885 AUD
Retailer 8$8,885 AUD
Retailer 3$9,315 AUD
Retailer 1$9,773 AUD
Retailer 2$10,071 AUD
Retailer 4$14,411 AUD

41 data points across 9 retailers

13 retailers$7,749 AUD to $16,404 AUD

B+
Cheapest Retailer
-
$7,749 AUD
B+
Retailer 2
-
$7,926 AUD
View
B+
Retailer 3
-
$8,270 AUD
View
B+
Retailer 4
-
$8,885 AUD
View
B+
Retailer 5
-
$8,885 AUD
View
Retailer 6
-
$8,885 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$9,315 AUD
View
B
Retailer 8
-
$9,773 AUD
View
B
Retailer 9
-
$10,071 AUD
View
B
Retailer 10
-
$10,252 AUD
View
Retailer 11
-
$10,812 AUD
View
Price last confirmed 15 days ago
B
Retailer 12
-
$14,411 AUD
View
Most Expensive
C
NZ Jewellers
c7273e29-e2d6-4081-83d6-91e8eda163a9 · Nov 5
$16,404 AUD
$11,271 USD
View
12 more retailers have this diamond
Prices start from $7,749 AUDSave up to $8,655 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
$7,749 AUD