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Marquise|Natural|GIA

1.51ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 7558309385

Certificate GIA 7558309385

Diamond specifications and retailer prices

From $4,636 NZD
As of November 5, 2026
Save $4,707 NZD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,343 NZD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558309385. Listed at 10 retailers as of November 5, 2026, with prices from $4,636 to $9,343, a $4,707 spread on the same certified stone. Wholesale Diamonds Direct lists it at $9,343. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.92°
Pavilion angle38.88°
OriginNatural
Grading LabGIA
CertificateGIA 7558309385
Dimensions11.13 × 5.88 × 3.73 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.13 mm5.88 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558309385
Side View
Table 59.0%Crown 39.92°Girdle: MED-THKPavilion 38.88°Culet: NoneDepth 63.5%

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 5
Current: $5,533 NZD|Low: $4,517 NZD|High: $10,643 NZD|Avg: $6,729 NZD|-12.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$4,517 NZD
Retailer 6$4,636 NZD
Retailer 7$5,130 NZD
Retailer 1$5,533 NZD
Retailer 4$5,776 NZD
Retailer 10$6,182 NZD
Retailer 8$6,586 NZD
Retailer 9$6,730 NZD
Retailer 5$6,824 NZD
Retailer 2$6,997 NZD
Retailer 11$8,801 NZD
Wholesale Diamonds Direct$9,343 NZD

33 data points across 12 retailers

10 retailers$4,636 NZD to $9,343 NZD

A
Cheapest Retailer
-
$4,636 NZD
A
Retailer 2
-
$5,130 NZD
View
A
Retailer 3
-
$5,533 NZD
View
A
Retailer 4
-
$5,776 NZD
View
A
Retailer 5
-
$6,182 NZD
View
A
Retailer 6
-
$6,586 NZD
View
A
Retailer 7
-
$6,730 NZD
View
A
Retailer 8
-
$6,824 NZD
View
B+
Retailer 9
-
$6,997 NZD
View
Most Expensive
B+
Wholesale Diamonds Direct
262936460 · Nov 6
$9,343 NZD
$5,180 USD
View
9 more retailers have this diamond
Prices start from $4,636 NZDSave up to $4,707 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.

A
1.51ct Marquise
$4,636 NZD