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Marquise|Natural|GIA

1.51ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 6552045873

Certificate GIA 6552045873

Diamond specifications and retailer prices

From $6,072 USD
As of November 2, 2026
Save $5,453 USD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,525 USD 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552045873. Listed at 9 retailers as of November 2, 2026, with prices from $6,072 to $11,525, a $5,453 spread on the same certified stone. NZ Jewellers lists it at $11,525. 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
J
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle42.9°
Pavilion angle39.32°
OriginNatural
Grading LabGIA
CertificateGIA 6552045873
Dimensions10.50 × 5.90 × 3.98 mm
L/W Ratio1.78
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
10.50 mm5.90 mm1.51 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552045873
Side View
Table 56.0%Crown 42.9°Girdle: ThickPavilion 39.32°Culet: NoneDepth 67.5%

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 2
Current: $11,525 USD|Low: $5,430 USD|High: $11,525 USD|Avg: $6,956 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 9$5,430 USD
Retailer 11$6,033 USD
Retailer 8$6,072 USD
Retailer 7$6,385 USD
Retailer 5$6,630 USD
Retailer 10$6,790 USD
Retailer 6$6,891 USD
Retailer 4$6,997 USD
Retailer 3$7,240 USD
Retailer 2$10,152 USD
NZ Jewellers$11,525 USD

11 data points across 11 retailers

9 retailers$6,072 USD to $11,525 USD

Retailer 1
-
$5,430 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$6,072 USD
View
B+
Retailer 3
-
$6,385 USD
View
B+
Retailer 4
-
$6,630 USD
£5,220 GBP
View
Retailer 5
-
$6,790 USD
View
Price last confirmed 12 days ago
B
Retailer 6
-
$6,891 USD
View
B
Retailer 7
-
$6,997 USD
View
B
Retailer 8
-
$10,152 USD
£7,994 GBP
View
Most Expensive
B
NZ Jewellers
37d9c89d-5e48-48e2-b3f5-98a7a371307d · Nov 3
$11,525 USD
View
8 more retailers have this diamond
Prices start from $6,072 USDSave up to $5,453 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.

B+
1.51ct Marquise
$6,072 USD