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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 7558057424

Certificate GIA 7558057424

Diamond specifications and retailer prices

From $13,161 SGD
$10,291 USD
As of November 2, 2026
Save $8,770 SGD (40%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $21,931 SGD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558057424. Listed at 9 retailers as of October 30, 2026, with prices from $13,161 to $21,931, a $8,770 spread on the same certified stone. NZ Jewellers lists it at $21,931. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7558057424
Dimensions11.57 × 6.01 × 3.63 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Top View
11.57 mm6.01 mm1.51 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7558057424
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.4%

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 2
Current: $21,931 SGD|Low: $13,161 SGD|High: $22,729 SGD|Avg: $17,193 SGD|-3.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$13,161 SGD
Retailer 4$14,097 SGD
Retailer 7$14,673 SGD
Retailer 2$14,826 SGD
Retailer 9$14,960 SGD
Retailer 3$15,435 SGD
Retailer 6$19,332 SGD
Retailer 5$20,551 SGD
NZ Jewellers$21,931 SGD

33 data points across 9 retailers

9 retailers$13,161 SGD to $21,931 SGD

B+
Cheapest Retailer
-
$13,161 SGD
$10,291 USD
B+
Retailer 2
-
$14,097 SGD
£8,680 GBP
View
B+
Retailer 3
-
$14,673 SGD
$11,473 USD
View
B+
Retailer 4
-
$14,826 SGD
£9,128 GBP
View
Retailer 5
-
$14,960 SGD
A$17,996 AUD
View
Price last confirmed 29 days ago
B+
Retailer 6
-
$15,435 SGD
€11,494 EUR
View
B
Retailer 7
-
$19,332 SGD
ZAR 244,196 ZAR
View
B
Retailer 8
-
$20,551 SGD
£12,653 GBP
View
Most Expensive
B
NZ Jewellers
74e0fd8e-56f3-488c-8aa1-41bcb4223ae2 · Oct 30
$21,931 SGD
$17,148 USD
View
8 more retailers have this diamond
Prices start from $13,161 SGDSave up to $8,770 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
$13,161 SGD