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Marquise|Natural|GIA

1.51ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6552470809

Certificate GIA 6552470809

Diamond specifications and retailer prices

From $6,088 USD
As of November 1, 2026
Save $7,059 USD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $13,147 USD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552470809. Listed at 17 retailers as of October 30, 2026, with prices from $6,088 to $13,147, a $7,059 spread on the same certified stone. NZ Jewellers lists it at $13,147. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.95°
Pavilion angle42.18°
OriginNatural
Grading LabGIA
CertificateGIA 6552470809
Dimensions11.17 × 6.10 × 3.80 mm
L/W Ratio1.83
Girdle conditionVery Thick
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural
Top View
11.17 mm6.10 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552470809
Side View
Table 65.0%Crown 34.95°Girdle: STK-VTKPavilion 42.18°Culet: NoneDepth 62.3%

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 1
Current: $13,147 USD|Low: $6,210 USD|High: $13,147 USD|Avg: $8,214 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 12$6,210 USD
Retailer 3$6,530 USD
Retailer 5$6,573 USD
Retailer 13$6,628 USD
Retailer 6$7,121 USD
Retailer 16$7,231 USD
Retailer 10$7,349 USD
Retailer 4$7,514 USD
Retailer 15$7,880 USD
Retailer 17$7,880 USD
Retailer 14$8,140 USD
Retailer 7$8,217 USD
Retailer 2$8,587 USD
Retailer 8$8,660 USD
Retailer 9$9,371 USD
Retailer 11$10,955 USD
NZ Jewellers$13,147 USD

40 data points across 17 retailers

17 retailers$6,088 USD to $13,147 USD

B+
Cheapest Retailer
-
$6,088 USD
B+
Retailer 2
-
$6,210 USD
View
B+
Retailer 3
-
$6,530 USD
CA$9,069 CAD
View
B+
Retailer 4
-
$6,573 USD
View
B
Retailer 5
-
$6,628 USD
View
B
Retailer 6
-
$7,121 USD
View
B
Retailer 7
-
$7,231 USD
View
B+
Retailer 8
-
$7,349 USD
£5,787 GBP
View
B
Retailer 9
-
$7,514 USD
View
B
Retailer 10
-
$7,880 USD
View
B
Retailer 11
-
$7,880 USD
View
B
Retailer 12
-
$8,140 USD
View
B
Retailer 13
-
$8,217 USD
View
B
Retailer 14
-
$8,587 USD
€8,178 EUR
View
Retailer 15
-
$8,660 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$10,955 USD
£8,626 GBP
View
Most Expensive
C
NZ Jewellers
59f719e2-1b58-4986-80a0-1449147ab945 · Oct 30
$13,147 USD
View
16 more retailers have this diamond
Prices start from $6,088 USDSave up to $7,059 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
$6,088 USD