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Marquise|Natural|GIA

1.51ct K SI2 Marquise Natural Diamond

ID • K/SI2 • GIA 1553383300

Certificate GIA 1553383300

Diamond specifications and retailer prices

From $4,514 USD
As of November 5, 2026
Save $5,604 USD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,118 USD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553383300. Listed at 11 retailers as of November 5, 2026, with prices from $4,514 to $10,118, a $5,604 spread on the same certified stone. NZ Jewellers lists it at $10,118. 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
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553383300
Dimensions11.04 × 5.99 × 3.80 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Knot, Crystal, Cavity, Needle, Indented Natural
Top View
11.04 mm5.99 mm1.51 ctK / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553383300
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 63.4%

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 5
Current: $10,118 USD|Low: $4,514 USD|High: $11,236 USD|Avg: $6,908 USD|-10.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$4,514 USD
Retailer 11$5,032 USD
Retailer 10$5,229 USD
Retailer 6$5,632 USD
Retailer 8$5,793 USD
Retailer 4$5,802 USD
Retailer 3$5,833 USD
Retailer 2$6,571 USD
Retailer 9$8,849 USD
Retailer 5$8,888 USD
NZ Jewellers$10,118 USD

42 data points across 11 retailers

11 retailers$4,514 USD to $10,118 USD

A
Cheapest Retailer
-
$4,514 USD
B+
Retailer 2
-
$5,032 USD
View
B+
Retailer 3
-
$5,229 USD
View
B+
Retailer 4
-
$5,632 USD
View
B+
Retailer 5
-
$5,793 USD
View
B+
Retailer 6
-
$5,802 USD
View
B+
Retailer 7
-
$5,833 USD
View
B
Retailer 8
-
$6,571 USD
View
B
Retailer 9
-
$8,849 USD
View
B
Retailer 10
-
$8,888 USD
View
Most Expensive
B
NZ Jewellers
0cf6a239-952c-461e-9423-3f241acea6c2 · Nov 5
$10,118 USD
View
10 more retailers have this diamond
Prices start from $4,514 USDSave up to $5,604 USD

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
$4,514 USD