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Marquise|Natural|GIA

1.51ct H SI1 Marquise Natural Diamond

H/SI1 • GIA 6565358396

Certificate GIA 6565358396

Diamond specifications and retailer prices

From $13,006 NZD
As of November 2, 2026
Save $10,084 NZD (44%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $23,090 NZD 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 H colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA 6565358396. Listed at 7 retailers as of November 2, 2026, with prices from $13,006 to $23,090, a $10,084 spread on the same certified stone. NZ Jewellers lists it at $23,090. 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
H
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle40°
Pavilion angle37.72°
OriginNatural
Grading LabGIA
CertificateGIA 6565358396
Dimensions10.92 × 5.97 × 3.71 mm
L/W Ratio1.83
Girdle conditionExtremely Thick
Key to symbols
Crystal, Feather, Cavity, Needle, Natural
Top View
10.92 mm5.97 mm1.51 ctH / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6565358396
Side View
Table 56.0%Crown 40°GirdlePavilion 37.72°CuletDepth 62.1%

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: $23,090 NZD|Low: $12,609 NZD|High: $24,481 NZD|Avg: $16,522 NZD|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$13,006 NZD
Retailer 4$13,187 NZD
Retailer 7$13,719 NZD
Retailer 6$13,805 NZD
Retailer 5$14,018 NZD
Retailer 3$19,239 NZD
NZ Jewellers$23,090 NZD

37 data points across 7 retailers

7 retailers$13,006 NZD to $23,090 NZD

B+
Cheapest Retailer
-
$13,006 NZD
B+
Retailer 2
-
$13,187 NZD
View
Retailer 3
-
$13,719 NZD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
$13,805 NZD
View
B+
Retailer 5
-
$14,018 NZD
View
B
Retailer 6
-
$19,239 NZD
View
Most Expensive
C
NZ Jewellers
2ad8eb61-efa7-48b6-8ea3-d62b9172fbfc · Nov 3
$23,090 NZD
$12,800 USD
View
6 more retailers have this diamond
Prices start from $13,006 NZDSave up to $10,084 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
$13,006 NZD