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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 $8,494 SGD
₹632,523 INR
As of November 2, 2026
Save $10,420 SGD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $18,914 SGD 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 $8,494 to $18,914, a $10,420 spread on the same certified stone. NZ Jewellers lists it at $18,914. 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
Colour
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: $18,914 SGD|Low: $8,494 SGD|High: $19,215 SGD|Avg: $11,198 SGD|-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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 16$8,494 SGD
Retailer 20$8,739 SGD
Retailer 9$9,048 SGD
Retailer 13$9,492 SGD
Retailer 11$9,773 SGD
Retailer 19$9,915 SGD
Retailer 18$10,308 SGD
Retailer 10$10,423 SGD
Retailer 6$10,438 SGD
Retailer 3$10,456 SGD
Retailer 14$10,895 SGD
Retailer 5$10,914 SGD
Retailer 12$11,056 SGD
Retailer 21$11,244 SGD
Retailer 7$11,308 SGD
Retailer 2$11,391 SGD
Retailer 4$11,555 SGD
Retailer 17$11,616 SGD
Retailer 15$12,944 SGD
Retailer 8$15,844 SGD
NZ Jewellers$18,914 SGD

12 data points across 21 retailers

21 retailers$8,494 SGD to $18,914 SGD

B+
Cheapest Retailer
-
$8,494 SGD
₹632,523 INR
B+
Retailer 2
-
$8,739 SGD
A$10,512 AUD
View
B+
Retailer 3
-
$9,048 SGD
$7,075 USD
View
Final sale: no returns
B+
Retailer 4
-
$9,492 SGD
$7,422 USD
View
B+
Retailer 5
-
$9,773 SGD
$7,642 USD
View
B+
Retailer 6
-
$9,915 SGD
$7,753 USD
View
B
Retailer 7
-
$10,308 SGD
$8,060 USD
View
B
Retailer 8
-
$10,423 SGD
$8,150 USD
View
B
Retailer 9
-
$10,438 SGD
$8,162 USD
View
B
Retailer 10
-
$10,456 SGD
£6,438 GBP
View
Retailer 11
-
$10,895 SGD
A$13,107 AUD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$10,914 SGD
£6,719 GBP
View
Retailer 13
-
$11,056 SGD
$8,645 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$11,244 SGD
$8,792 USD
View
B
Retailer 15
-
$11,308 SGD
$8,842 USD
View
B
Retailer 16
-
$11,391 SGD
$8,907 USD
View
B
Retailer 17
-
$11,555 SGD
$9,035 USD
View
B
Retailer 18
-
$11,616 SGD
€8,650 EUR
View
B
Retailer 19
-
$12,944 SGD
$10,121 USD
View
B
Retailer 20
-
$15,844 SGD
£9,755 GBP
View
Most Expensive
B
NZ Jewellers
6bb1fa8d-6ca7-4383-a961-5087c68daff0 · Oct 30
$18,914 SGD
$14,789 USD
View
20 more retailers have this diamond
Prices start from $8,494 SGDSave up to $10,420 SGD

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
$8,494 SGD