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Marquise|Natural|GIA

1.51ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 5556531806

Certificate GIA 5556531806

Diamond specifications and retailer prices

From $19,329 NZD
As of November 6, 2026
Save $12,461 NZD (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $31,790 NZD at NZ Jewellers · As of November 5, 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), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5556531806. Listed at 11 retailers as of November 5, 2026, with prices from $19,329 to $31,790, a $12,461 spread on the same certified stone. NZ Jewellers lists it at $31,790. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556531806
Dimensions10.98 × 5.75 × 3.67 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle, Natural
Top View
10.98 mm5.75 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556531806
Side View
Table 61.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $20,409 NZD|Low: $19,760 NZD|High: $30,149 NZD|Avg: $23,952 NZD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 2$19,760 NZD
Retailer 1$20,409 NZD
Retailer 7$20,721 NZD
Retailer 3$21,374 NZD
Retailer 6$23,934 NZD
Retailer 4$27,829 NZD
Retailer 5$29,708 NZD

40 data points across 7 retailers

11 retailers$19,329 NZD to $31,790 NZD

B
Cheapest Retailer
-
$19,329 NZD
B
Retailer 2
-
$19,760 NZD
View
B
Retailer 3
-
$20,409 NZD
View
Retailer 4
-
$20,721 NZD
View
Price last confirmed 15 days ago
B
Retailer 5
-
$21,279 NZD
View
B
Retailer 6
-
$21,374 NZD
View
B
Retailer 7
-
$22,722 NZD
View
B
Retailer 8
-
$23,934 NZD
View
B
Retailer 9
-
$27,829 NZD
View
B
Retailer 10
-
$29,708 NZD
View
Most Expensive
C
NZ Jewellers
01211c48-ab80-4a2d-a4fc-f3dd241d3655 · Nov 5
$31,790 NZD
$17,623 USD
View
10 more retailers have this diamond
Prices start from $19,329 NZDSave up to $12,461 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
$19,329 NZD