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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 $9,889 SGD
As of November 6, 2026
Save $9,076 SGD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $18,965 SGD 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 $9,889 to $18,965, a $9,076 spread on the same certified stone. NZ Jewellers lists it at $18,965. 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: $18,965 SGD|Low: $9,889 SGD|High: $18,965 SGD|Avg: $12,185 SGD
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$9,889 SGD
Retailer 9$10,278 SGD
Retailer 3$10,683 SGD
Retailer 2$10,906 SGD
Retailer 6$11,340 SGD
Retailer 8$11,378 SGD
Retailer 5$11,514 SGD
Retailer 10$12,291 SGD
Retailer 4$15,802 SGD
NZ Jewellers$18,965 SGD

11 data points across 10 retailers

8 retailers$9,889 SGD to $18,965 SGD

B+
Cheapest Retailer
-
$9,889 SGD
B
Retailer 2
-
$10,683 SGD
View
B
Retailer 3
-
$10,906 SGD
View
B
Retailer 4
-
$11,340 SGD
View
B
Retailer 5
-
$11,378 SGD
View
B
Retailer 6
-
$11,514 SGD
View
C
Retailer 7
-
$15,802 SGD
View
Most Expensive
C
NZ Jewellers
83094239-06f5-4d17-a5c7-0f7a72abd881 · Nov 3
$18,965 SGD
$14,798 USD
View
7 more retailers have this diamond
Prices start from $9,889 SGDSave up to $9,076 SGD

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
$9,889 SGD