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Marquise|Natural|GIA

1.51ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 5546282913

Certificate GIA 5546282913

Diamond specifications and retailer prices

From $8,666 NZD
As of November 6, 2026
Save $7,461 NZD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $16,127 NZD at NZ Jewellers · As of November 3, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546282913. Listed at 8 retailers as of November 3, 2026, with prices from $8,666 to $16,127, a $7,461 spread on the same certified stone. NZ Jewellers lists it at $16,127. 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

1.51
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.51°
Pavilion angle39.18°
OriginNatural
Grading LabGIA
CertificateGIA 5546282913
Dimensions13.01 × 5.36 × 3.51 mm
L/W Ratio2.43
Top View
13.01 mm5.36 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546282913
Side View
Table 64.0%Crown 43.51°GirdlePavilion 39.18°CuletDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $16,127 NZD|Low: $8,666 NZD|High: $16,805 NZD|Avg: $11,215 NZD|-4.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 5$8,666 NZD
Retailer 2$9,272 NZD
Retailer 6$9,398 NZD
Retailer 3$9,404 NZD
Retailer 7$9,642 NZD
Retailer 8$9,642 NZD
Retailer 9$11,289 NZD
Retailer 10$11,659 NZD
Retailer 4$15,358 NZD
NZ Jewellers$16,127 NZD

31 data points across 10 retailers

8 retailers$8,666 NZD to $16,127 NZD

A
Cheapest Retailer
-
$8,666 NZD
B+
Retailer 2
-
$9,272 NZD
View
B+
Retailer 3
-
$9,398 NZD
View
B+
Retailer 4
-
$9,404 NZD
View
B+
Retailer 5
-
$9,642 NZD
View
B+
Retailer 6
-
$9,642 NZD
View
B
Retailer 7
-
$15,358 NZD
View
Most Expensive
B
NZ Jewellers
74969bda-97c9-4678-ad62-e5392926a5e0 · Nov 3
$16,127 NZD
$8,940 USD
View
7 more retailers have this diamond
Prices start from $8,666 NZDSave up to $7,461 NZD

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.

A
1.51ct Marquise
$8,666 NZD