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Marquise|Natural|GIA

1.51ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 1558321176

Certificate GIA 1558321176

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)
19 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 1558321176. Listed at 19 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
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle40.97°
OriginNatural
Grading LabGIA
CertificateGIA 1558321176
Dimensions11.00 × 5.94 × 3.90 mm
L/W Ratio1.85
Culet sizeNone
Top View
11.00 mm5.94 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558321176
Side View
Table 58.0%Crown 40.1°Girdle: MED-THKPavilion 40.97°Culet: NoneDepth 65.7%

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: $17,958 NZD|Low: $13,547 NZD|High: $25,567 NZD|Avg: $16,814 NZD|+12.1%
Retailer 1
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 7, 2026
Retailer 15$13,547 NZD
Retailer 6$13,639 NZD
Retailer 14$14,083 NZD
Retailer 8$14,175 NZD
Retailer 13$14,307 NZD
Retailer 5$14,370 NZD
Retailer 20$16,038 NZD
Retailer 19$16,066 NZD
Retailer 10$16,755 NZD
Retailer 12$17,124 NZD
Retailer 22$17,124 NZD
Retailer 1$17,958 NZD
Retailer 7$18,990 NZD
Retailer 17$19,100 NZD
Retailer 2$19,518 NZD
Retailer 3$19,518 NZD
Retailer 18$19,800 NZD
Retailer 16$20,141 NZD
Retailer 4$20,168 NZD
Retailer 11$20,905 NZD
Retailer 9$23,086 NZD
Retailer 21$25,567 NZD

30 data points across 22 retailers

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

Retailer 1
-
$13,547 NZD
Price last confirmed 26 days ago
Retailer 2
-
$14,175 NZD
View
Price last confirmed 17 days ago
Retailer 3
-
$14,307 NZD
View
Price last confirmed 19 days ago
Retailer 4
-
$14,370 NZD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$16,038 NZD
View
B
Retailer 6
-
$16,066 NZD
View
Retailer 7
-
$16,755 NZD
View
Price last confirmed 18 days ago
B
Retailer 8
-
$17,124 NZD
View
B
Retailer 9
-
$17,124 NZD
View
B
Retailer 10
-
$17,958 NZD
View
B
Retailer 11
-
$19,100 NZD
View
B
Retailer 12
-
$19,518 NZD
View
B
Retailer 13
-
$19,518 NZD
View
B
Retailer 14
-
$19,800 NZD
View
B
Retailer 15
-
$20,141 NZD
View
B
Retailer 16
-
$20,168 NZD
View
Retailer 17
-
$20,905 NZD
View
Price last confirmed 18 days ago
B
Retailer 18
-
$25,567 NZD
View
Most Expensive
B
NZ Jewellers
a2d2d991-c6f1-4507-ab22-f9d53492dd11 · Nov 5
$27,358 NZD
$15,166 USD
View
18 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