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Marquise|Natural|GIA

1.51ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 5543653727

Certificate GIA 5543653727

Diamond specifications and retailer prices

From $6,056 SGD
$4,735 USD
As of November 1, 2026
Save $5,165 SGD (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $11,221 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5543653727. Listed at 7 retailers as of October 30, 2026, with prices from $6,056 to $11,221, a $5,165 spread on the same certified stone. NZ Jewellers lists it at $11,221. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle43.4°
Pavilion angle42.38°
OriginNatural
Grading LabGIA
CertificateGIA 5543653727
Dimensions10.32 × 5.81 × 4.04 mm
L/W Ratio1.78
Top View
10.32 mm5.81 mm1.51 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5543653727
Side View
Table 64.0%Crown 43.4°Girdle: THK-ETKPavilion 42.38°CuletDepth 69.6%

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: $11,221 SGD|Low: $5,199 SGD|High: $11,221 SGD|Avg: $6,917 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$5,199 SGD
Retailer 8$5,753 SGD
Retailer 6$6,056 SGD
Retailer 3$6,197 SGD
Retailer 2$6,441 SGD
Retailer 4$6,441 SGD
Retailer 9$7,150 SGD
Retailer 10$7,175 SGD
Retailer 5$10,258 SGD
NZ Jewellers$11,221 SGD

8 data points across 10 retailers

7 retailers$6,056 SGD to $11,221 SGD

Retailer 1
-
$5,199 SGD
$4,065 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$6,056 SGD
$4,735 USD
View
B+
Retailer 3
-
$6,197 SGD
£3,815 GBP
View
B+
Retailer 4
-
$6,441 SGD
$5,036 USD
View
B+
Retailer 5
-
$6,441 SGD
$5,036 USD
View
C
Retailer 6
-
$10,258 SGD
£6,316 GBP
View
Most Expensive
C
NZ Jewellers
5ac3d702-5ac4-41ac-b031-3fce6ae49f10 · Oct 30
$11,221 SGD
$8,774 USD
View
6 more retailers have this diamond
Prices start from $6,056 SGDSave up to $5,165 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
$6,056 SGD