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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 2235994080

Certificate GIA 2235994080

Diamond specifications and retailer prices

From $8,586 SGD
£5,286 GBP
As of November 2, 2026
Save $8,083 SGD (48%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $16,669 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2235994080. Listed at 11 retailers as of October 30, 2026, with prices from $8,586 to $16,669, a $8,083 spread on the same certified stone. NZ Jewellers lists it at $16,669. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle38.28°
Pavilion angle43.32°
OriginNatural
Grading LabGIA
CertificateGIA 2235994080
Dimensions10.60 × 5.95 × 4.04 mm
L/W Ratio1.78
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Needle, Pinpoint
Top View
10.60 mm5.95 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2235994080
Side View
Table 63.0%Crown 38.28°Girdle: THK-VTKPavilion 43.32°Culet: NoneDepth 67.8%

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: $16,669 SGD|Low: $7,859 SGD|High: $17,398 SGD|Avg: $11,021 SGD|-4.2%
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
November 2, 2026
Retailer 13$7,859 SGD
Retailer 7$8,586 SGD
Retailer 4$8,773 SGD
Retailer 10$8,965 SGD
Retailer 11$9,195 SGD
Retailer 6$9,456 SGD
Retailer 3$9,872 SGD
Retailer 5$9,873 SGD
Retailer 12$9,966 SGD
Retailer 2$10,019 SGD
Retailer 8$11,275 SGD
Retailer 9$13,889 SGD
NZ Jewellers$16,669 SGD

16 data points across 13 retailers

11 retailers$8,586 SGD to $16,669 SGD

Retailer 1
-
$7,859 SGD
$6,145 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$8,586 SGD
£5,286 GBP
View
B+
Retailer 3
-
$8,965 SGD
$7,010 USD
View
B+
Retailer 4
-
$9,195 SGD
$7,190 USD
View
B+
Retailer 5
-
$9,456 SGD
£5,822 GBP
View
Retailer 6
-
$9,872 SGD
$7,719 USD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
$9,966 SGD
$7,793 USD
View
B+
Retailer 8
-
$10,019 SGD
$7,834 USD
View
B
Retailer 9
-
$11,275 SGD
$8,816 USD
View
B
Retailer 10
-
$13,889 SGD
£8,551 GBP
View
Most Expensive
C
NZ Jewellers
ac89687c-962d-4a3e-b7d5-3dd3a6415160 · Oct 30
$16,669 SGD
$13,034 USD
View
10 more retailers have this diamond
Prices start from $8,586 SGDSave up to $8,083 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
$8,586 SGD