CaratHunter
Plans
Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

GD • G/SI1 • GIA 6561587509

Certificate GIA 6561587509

Diamond specifications and retailer prices

From $9,907 SGD
As of November 4, 2026
Save $7,851 SGD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $17,758 SGD at With Clarity · As of November 6, 2026
View at With Clarity

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded G 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 6561587509. Listed at 13 retailers as of November 4, 2026, with prices from $9,907 to $17,758, a $7,851 spread on the same certified stone. With Clarity lists it at $17,758. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.81°
Pavilion angle40.54°
OriginNatural
Grading LabGIA
CertificateGIA 6561587509
Dimensions10.64 × 5.84 × 3.94 mm
L/W Ratio1.82
Culet sizeNone
Top View
10.64 mm5.84 mm1.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561587509
Side View
Table 61.0%Crown 43.81°Girdle: VTN-VTKPavilion 40.54°Culet: NoneDepth 67.5%

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 4
Current: $11,141 SGD|Low: $9,907 SGD|High: $17,758 SGD|Avg: $12,071 SGD|-18.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
November 6, 2026
Retailer 4$9,907 SGD
Retailer 11$10,489 SGD
Retailer 10$10,904 SGD
Retailer 2$11,054 SGD
Retailer 1$11,141 SGD
Retailer 6$11,177 SGD
Retailer 12$11,188 SGD
Retailer 3$12,725 SGD
Retailer 7$12,845 SGD
Retailer 5$13,068 SGD
Retailer 8$13,084 SGD
Retailer 9$16,085 SGD
With Clarity$17,758 SGD

8 data points across 13 retailers

13 retailers$9,907 SGD to $17,758 SGD

B+
Cheapest Retailer
-
$9,907 SGD
B+
Retailer 2
-
$10,489 SGD
View
B+
Retailer 3
-
$10,904 SGD
View
B+
Retailer 4
-
$11,054 SGD
View
B+
Retailer 5
-
$11,141 SGD
View
B+
Retailer 6
-
$11,177 SGD
View
B+
Retailer 7
-
$11,188 SGD
View
B
Retailer 8
-
$12,725 SGD
View
B
Retailer 9
-
$12,845 SGD
View
B
Retailer 10
-
$13,068 SGD
View
B
Retailer 11
-
$13,084 SGD
View
B
Retailer 12
-
$16,085 SGD
View
Most Expensive
B
With Clarity
6561587509 · Nov 6
$17,758 SGD
$13,856 USD
View
12 more retailers have this diamond
Prices start from $9,907 SGDSave up to $7,851 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
$9,907 SGD