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Marquise|Natural|GIA

1.01ct J SI2 Marquise Natural Diamond

ID • J/SI2 • GIA 5242005794

Certificate GIA 5242005794

Diamond specifications and retailer prices

From $2,199 SGD
$1,720 USD
As of November 1, 2026
Save $1,275 SGD (37%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,461 SGD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-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 5242005794. Listed at 16 retailers as of November 1, 2026, with a 58% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242005794
Dimensions10.12 × 5.21 × 3.33 mm
L/W Ratio1.94
Girdle conditionFaceted
Top View
10.12 mm5.21 mm1.01 ctJ / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5242005794
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.9%

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 1
Current: $5,461 SGD|Low: $1,980 SGD|High: $5,461 SGD|Avg: $2,765 SGD
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 12$1,980 SGD
Retailer 7$2,002 SGD
Retailer 9$2,033 SGD
Retailer 17$2,199 SGD
Retailer 19$2,214 SGD
Retailer 21$2,221 SGD
Retailer 16$2,251 SGD
Retailer 18$2,317 SGD
Retailer 10$2,442 SGD
Retailer 6$2,649 SGD
Retailer 11$2,661 SGD
Retailer 4$2,713 SGD
Retailer 14$2,772 SGD
Retailer 15$2,841 SGD
Retailer 3$2,876 SGD
Retailer 5$2,876 SGD
Retailer 20$2,966 SGD
Retailer 13$3,359 SGD
Retailer 2$3,474 SGD
Retailer 8$3,853 SGD
NZ Jewellers$5,461 SGD

32 data points across 21 retailers

16 retailers$2,199 SGD to $3,474 SGD

Retailer 1
-
$1,980 SGD
HK$12,100 HKD
Price last confirmed 59 days ago
A
Retailer 2
-
$2,199 SGD
$1,720 USD
View
A
Retailer 3
-
$2,214 SGD
$1,732 USD
View
A
Retailer 4
-
$2,221 SGD
$1,737 USD
View
A
Retailer 5
-
$2,251 SGD
$1,761 USD
View
B+
Retailer 6
-
$2,317 SGD
$1,812 USD
View
Retailer 7
-
$2,442 SGD
$1,910 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$2,649 SGD
£1,632 GBP
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$2,713 SGD
$2,122 USD
View
B+
Retailer 10
-
$2,841 SGD
$2,222 USD
View
B+
Retailer 11
-
$2,876 SGD
$2,250 USD
View
B+
Retailer 12
-
$2,876 SGD
$2,250 USD
View
B+
Retailer 13
-
$2,966 SGD
$2,320 USD
View
B
Retailer 14
-
$3,359 SGD
£2,069 GBP
View
B
Retailer 15
-
$3,474 SGD
€2,588 EUR
View
Most Expensive
NZ Jewellers
fea37655-29d3-4be8-b435-a7b0ead6367e · Sep 29
$5,461 SGD
$4,272 USD
View
Price last confirmed 33 days ago
15 more retailers have this diamond
Prices start from $2,199 SGDSave up to $1,275 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.

A
1.01ct Marquise
$2,199 SGD