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Marquise|Natural|GIA

1.51ct L SI1 Marquise Natural Diamond

GD • L/SI1 • GIA 3525877639

Certificate GIA 3525877639

Diamond specifications and retailer prices

From $4,665 AUD
As of November 7, 2026
Save $3,742 AUD (45%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,406 AUD at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded L 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 3525877639. Listed at 5 retailers as of November 7, 2026, with prices from $4,665 to $8,406, a $3,742 spread on the same certified stone. NZ Jewellers lists it at $8,406. 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

1.51
Carat
L
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle32.77°
Pavilion angle36.64°
OriginNatural
Grading LabGIA
CertificateGIA 3525877639
Dimensions11.09 × 6.23 × 3.43 mm
L/W Ratio1.78
Top View
11.09 mm6.23 mm1.51 ctL / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 3525877639
Side View
Table 65.0%Crown 32.77°GirdlePavilion 36.64°CuletDepth 55.1%

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 7
Current: $8,406 AUD|Low: $4,665 AUD|High: $8,735 AUD|Avg: $5,669 AUD|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 5$4,665 AUD
Retailer 2$4,775 AUD
Retailer 4$4,825 AUD
Retailer 3$5,011 AUD
Retailer 6$5,416 AUD
NZ Jewellers$8,406 AUD

32 data points across 6 retailers

5 retailers$4,665 AUD to $8,406 AUD

B+
Cheapest Retailer
-
$4,665 AUD
B+
Retailer 2
-
$4,775 AUD
View
B+
Retailer 3
-
$4,825 AUD
View
B
Retailer 4
-
$5,011 AUD
View
Most Expensive
C
NZ Jewellers
d78fddfd-d9e2-4dfe-97db-615100f0e0d6 · Nov 7
$8,406 AUD
$5,776 USD
View
4 more retailers have this diamond
Prices start from $4,665 AUDSave up to $3,742 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+
1.51ct Marquise
$4,665 AUD