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Marquise|Natural|GIA

1.51ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 7556154054

Certificate GIA 7556154054

Diamond specifications and retailer prices

From $13,919 NZD
As of November 6, 2026
Save $12,775 NZD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $26,694 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), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7556154054. Listed at 8 retailers as of November 3, 2026, with prices from $13,919 to $26,694, a $12,775 spread on the same certified stone. NZ Jewellers lists it at $26,694. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35.97°
Pavilion angle36.24°
OriginNatural
Grading LabGIA
CertificateGIA 7556154054
Dimensions11.07 × 6.23 × 3.46 mm
L/W Ratio1.78
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Cavity, Knot, Indented Natural
Top View
11.07 mm6.23 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7556154054
Side View
Table 67.0%Crown 35.97°GirdlePavilion 36.24°CuletDepth 55.6%

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 6
Current: $26,694 NZD|Low: $13,919 NZD|High: $26,694 NZD|Avg: $17,150 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7$13,919 NZD
Retailer 9$14,467 NZD
Retailer 3$15,037 NZD
Retailer 2$15,351 NZD
Retailer 6$15,961 NZD
Retailer 8$16,015 NZD
Retailer 5$16,206 NZD
Retailer 10$17,299 NZD
Retailer 4$22,242 NZD
NZ Jewellers$26,694 NZD

11 data points across 10 retailers

8 retailers$13,919 NZD to $26,694 NZD

B+
Cheapest Retailer
-
$13,919 NZD
B
Retailer 2
-
$15,037 NZD
View
B
Retailer 3
-
$15,351 NZD
View
B
Retailer 4
-
$15,961 NZD
View
B
Retailer 5
-
$16,015 NZD
View
B
Retailer 6
-
$16,206 NZD
View
C
Retailer 7
-
$22,242 NZD
View
Most Expensive
C
NZ Jewellers
83094239-06f5-4d17-a5c7-0f7a72abd881 · Nov 3
$26,694 NZD
$14,798 USD
View
7 more retailers have this diamond
Prices start from $13,919 NZDSave up to $12,775 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
$13,919 NZD