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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

GD • G/SI1 • GIA 6561587509

Certificate GIA 6561587509

Diamond specifications and retailer prices

From $13,944 NZD
As of November 4, 2026
Save $11,051 NZD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $24,995 NZD 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 $13,944 to $24,995, a $11,051 spread on the same certified stone. With Clarity lists it at $24,995. 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: $15,681 NZD|Low: $13,944 NZD|High: $24,995 NZD|Avg: $16,991 NZD|-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$13,944 NZD
Retailer 11$14,763 NZD
Retailer 10$15,348 NZD
Retailer 2$15,559 NZD
Retailer 1$15,681 NZD
Retailer 6$15,732 NZD
Retailer 12$15,748 NZD
Retailer 3$17,911 NZD
Retailer 7$18,080 NZD
Retailer 5$18,394 NZD
Retailer 8$18,416 NZD
Retailer 9$22,641 NZD
With Clarity$24,995 NZD

8 data points across 13 retailers

13 retailers$13,944 NZD to $24,995 NZD

B+
Cheapest Retailer
-
$13,944 NZD
B+
Retailer 2
-
$14,763 NZD
View
B+
Retailer 3
-
$15,348 NZD
View
B+
Retailer 4
-
$15,559 NZD
View
B+
Retailer 5
-
$15,681 NZD
View
B+
Retailer 6
-
$15,732 NZD
View
B+
Retailer 7
-
$15,748 NZD
View
B
Retailer 8
-
$17,911 NZD
View
B
Retailer 9
-
$18,080 NZD
View
B
Retailer 10
-
$18,394 NZD
View
B
Retailer 11
-
$18,416 NZD
View
B
Retailer 12
-
$22,641 NZD
View
Most Expensive
B
With Clarity
6561587509 · Nov 6
$24,995 NZD
$13,856 USD
View
12 more retailers have this diamond
Prices start from $13,944 NZDSave up to $11,051 NZD

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
$13,944 NZD