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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 2554673570

Certificate GIA 2554673570

Diamond specifications and retailer prices

From $8,002 SGD
$6,257 USD
As of November 1, 2026
Save $7,640 SGD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,642 SGD at NZ Jewellers · As of November 3, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2554673570. Listed at 15 retailers as of November 1, 2026, with prices from $8,002 to $15,642, a $7,640 spread on the same certified stone. NZ Jewellers lists it at $15,642. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554673570
Dimensions6.02 × 11.23 × 3.76 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Needle
Top View
6.02 mm11.23 mm1.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554673570
Side View
Table 54.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.5%

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: $15,642 SGD|Low: $8,002 SGD|High: $16,188 SGD|Avg: $9,771 SGD|-3.4%
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
November 3, 2026
Retailer 14$8,002 SGD
Retailer 15$8,287 SGD
Retailer 6$8,299 SGD
Retailer 7$8,479 SGD
Retailer 11$8,633 SGD
Retailer 4$8,708 SGD
Retailer 3$8,722 SGD
Retailer 2$8,819 SGD
Retailer 10$8,874 SGD
Retailer 5$9,236 SGD
Retailer 13$9,353 SGD
Retailer 8$9,496 SGD
Retailer 9$10,791 SGD
Retailer 12$13,034 SGD
NZ Jewellers$15,642 SGD

31 data points across 15 retailers

15 retailers$8,002 SGD to $15,642 SGD

A
Cheapest Retailer
-
$8,002 SGD
$6,257 USD
B+
Retailer 2
-
$8,287 SGD
$6,480 USD
View
B+
Retailer 3
-
$8,299 SGD
$6,489 USD
View
Retailer 4
-
$8,479 SGD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$8,633 SGD
$6,750 USD
View
Final sale: no returns
B+
Retailer 6
-
$8,708 SGD
$6,809 USD
View
B+
Retailer 7
-
$8,722 SGD
$6,820 USD
View
B+
Retailer 8
-
$8,819 SGD
£5,430 GBP
View
B+
Retailer 9
-
$8,874 SGD
£5,464 GBP
View
Retailer 10
-
$9,236 SGD
A$11,111 AUD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$9,353 SGD
$7,313 USD
View
B+
Retailer 12
-
$9,496 SGD
$7,425 USD
View
B
Retailer 13
-
$10,791 SGD
$8,438 USD
View
B
Retailer 14
-
$13,034 SGD
£8,025 GBP
View
Most Expensive
B
NZ Jewellers
c49883fe-d6f6-4c4c-9c3e-40419c4a033f · Nov 3
$15,642 SGD
$12,231 USD
View
14 more retailers have this diamond
Prices start from $8,002 SGDSave up to $7,640 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
1.51ct Marquise
$8,002 SGD