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Marquise|Natural|GIA

1.51ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 2557673649

Certificate GIA 2557673649

Diamond specifications and retailer prices

From $16,038 NZD
As of November 6, 2026
Save $11,319 NZD (41%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $27,358 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 2557673649. Listed at 16 retailers as of November 5, 2026, with prices from $16,038 to $27,358, a $11,319 spread on the same certified stone. NZ Jewellers lists it at $27,358. 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
Crown angle34.6°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 2557673649
Dimensions11.04 × 5.91 × 3.82 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Natural
Top View
11.04 mm5.91 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557673649
Side View
Table 63.0%Crown 34.6°Girdle: STK-VTKPavilion 40.4°Culet: NoneDepth 64.6%

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: $27,358 NZD|Low: $15,965 NZD|High: $27,358 NZD|Avg: $17,810 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 9$15,965 NZD
Retailer 16$16,038 NZD
Retailer 14$16,066 NZD
Retailer 8$16,452 NZD
Retailer 3$17,124 NZD
Retailer 10$17,124 NZD
Retailer 2$17,958 NZD
Retailer 12$18,441 NZD
Retailer 15$18,447 NZD
Retailer 7$19,100 NZD
Retailer 4$19,518 NZD
Retailer 5$19,518 NZD
Retailer 13$19,800 NZD
Retailer 11$20,141 NZD
Retailer 6$20,168 NZD
Retailer 17$25,567 NZD
NZ Jewellers$27,358 NZD

26 data points across 17 retailers

16 retailers$16,038 NZD to $27,358 NZD

B+
Cheapest Retailer
-
$16,038 NZD
B+
Retailer 2
-
$16,066 NZD
View
Retailer 3
-
$16,452 NZD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
$17,124 NZD
View
B+
Retailer 5
-
$17,124 NZD
View
B
Retailer 6
-
$17,958 NZD
View
B
Retailer 7
-
$18,441 NZD
View
B
Retailer 8
-
$18,447 NZD
View
B
Retailer 9
-
$19,100 NZD
View
B
Retailer 10
-
$19,518 NZD
View
B
Retailer 11
-
$19,518 NZD
View
B
Retailer 12
-
$19,800 NZD
View
B
Retailer 13
-
$20,141 NZD
View
B
Retailer 14
-
$20,168 NZD
View
B
Retailer 15
-
$25,567 NZD
View
Most Expensive
C
NZ Jewellers
bdc42ab6-79b9-4906-bbc7-3852fac9c939 · Nov 5
$27,358 NZD
$15,166 USD
View
15 more retailers have this diamond
Prices start from $16,038 NZDSave up to $11,319 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
$16,038 NZD