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Marquise|Natural|GIA

1.51ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 2566364425

Certificate GIA 2566364425

Diamond specifications and retailer prices

From $6,641 USD
₹632,523 INR
As of November 2, 2026
Save $8,148 USD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $14,789 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566364425. Listed at 21 retailers as of October 30, 2026, with prices from $6,641 to $14,789, a $8,148 spread on the same certified stone. NZ Jewellers lists it at $14,789. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566364425
Dimensions11.56 × 6.06 × 3.74 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
11.56 mm6.06 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566364425
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.7%

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: $14,789 USD|Low: $6,641 USD|High: $15,025 USD|Avg: $8,756 USD|-1.6%
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
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 16$6,641 USD
Retailer 20$6,833 USD
Retailer 9$7,075 USD
Retailer 13$7,422 USD
Retailer 11$7,642 USD
Retailer 19$7,753 USD
Retailer 18$8,060 USD
Retailer 10$8,150 USD
Retailer 6$8,162 USD
Retailer 3$8,176 USD
Retailer 14$8,519 USD
Retailer 5$8,534 USD
Retailer 12$8,645 USD
Retailer 21$8,792 USD
Retailer 7$8,842 USD
Retailer 2$8,907 USD
Retailer 4$9,035 USD
Retailer 17$9,083 USD
Retailer 15$10,121 USD
Retailer 8$12,389 USD
NZ Jewellers$14,789 USD

12 data points across 21 retailers

21 retailers$6,641 USD to $14,789 USD

B+
Cheapest Retailer
-
$6,641 USD
₹632,523 INR
B+
Retailer 2
-
$6,833 USD
A$10,512 AUD
View
B+
Retailer 3
-
$7,075 USD
View
Final sale: no returns
B+
Retailer 4
-
$7,422 USD
View
B+
Retailer 5
-
$7,642 USD
View
B+
Retailer 6
-
$7,753 USD
View
B
Retailer 7
-
$8,060 USD
View
B
Retailer 8
-
$8,150 USD
View
B
Retailer 9
-
$8,162 USD
View
B
Retailer 10
-
$8,176 USD
£6,438 GBP
View
Retailer 11
-
$8,519 USD
A$13,107 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$8,534 USD
£6,719 GBP
View
Retailer 13
-
$8,645 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$8,792 USD
View
B
Retailer 15
-
$8,842 USD
View
B
Retailer 16
-
$8,907 USD
View
B
Retailer 17
-
$9,035 USD
View
B
Retailer 18
-
$9,083 USD
€8,650 EUR
View
B
Retailer 19
-
$10,121 USD
View
B
Retailer 20
-
$12,389 USD
£9,755 GBP
View
Most Expensive
B
NZ Jewellers
6bb1fa8d-6ca7-4383-a961-5087c68daff0 · Oct 30
$14,789 USD
View
20 more retailers have this diamond
Prices start from $6,641 USDSave up to $8,148 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
$6,641 USD