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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 $8,891 USD
As of November 6, 2026
Save $6,275 USD (41%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $15,166 USD 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 $8,891 to $15,166, a $6,275 spread on the same certified stone. NZ Jewellers lists it at $15,166. 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
Color
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: $15,166 USD|Low: $8,850 USD|High: $15,166 USD|Avg: $9,775 USD
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 6, 2026
Retailer 9$8,850 USD
Retailer 16$8,891 USD
Retailer 14$8,906 USD
Retailer 8$9,120 USD
Retailer 2$9,493 USD
Retailer 3$9,493 USD
Retailer 13$9,955 USD
Retailer 11$10,223 USD
Retailer 15$10,226 USD
Retailer 7$10,588 USD
Retailer 4$10,820 USD
Retailer 5$10,820 USD
Retailer 12$10,976 USD
Retailer 10$11,165 USD
Retailer 6$11,180 USD
Retailer 17$14,173 USD
NZ Jewellers$15,166 USD

25 data points across 17 retailers

16 retailers$8,891 USD to $15,166 USD

B+
Cheapest Retailer
-
$8,891 USD
B+
Retailer 2
-
$8,906 USD
View
Retailer 3
-
$9,120 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$9,493 USD
View
Retailer 5
-
$9,493 USD
View
B
Retailer 6
-
$9,955 USD
View
B
Retailer 7
-
$10,223 USD
View
B
Retailer 8
-
$10,226 USD
View
B
Retailer 9
-
$10,588 USD
View
B
Retailer 10
-
$10,820 USD
View
B
Retailer 11
-
$10,820 USD
View
B
Retailer 12
-
$10,976 USD
View
B
Retailer 13
-
$11,165 USD
View
B
Retailer 14
-
$11,180 USD
View
B
Retailer 15
-
$14,173 USD
View
Most Expensive
C
NZ Jewellers
bdc42ab6-79b9-4906-bbc7-3852fac9c939 · Nov 5
$15,166 USD
View
15 more retailers have this diamond
Prices start from $8,891 USDSave up to $6,275 USD

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
$8,891 USD