CaratHunter
Plans
Marquise|Natural|GIA

1.51ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6542470783

Certificate GIA 6542470783

Diamond specifications and retailer prices

From $11,707 SGD
$9,154 USD
As of October 28, 2026
Save $9,323 SGD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $21,030 SGD at NZ Jewellers · As of October 27, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542470783. Listed at 14 retailers as of October 27, 2026, with prices from $11,707 to $21,030, a $9,323 spread on the same certified stone. NZ Jewellers lists it at $21,030. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6542470783
Dimensions11.78 × 5.93 × 3.70 mm
L/W Ratio1.99
Top View
11.78 mm5.93 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542470783
Side View
Table 59.0%CrownGirdle: STK-VTKPavilion 39.8°Culet: NoneDepth 62.4%

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: Oct 28
Current: $21,030 SGD|Low: $11,641 SGD|High: $21,030 SGD|Avg: $14,728 SGD
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
October 29, 2026
Retailer 3$11,641 SGD
Retailer 13$11,707 SGD
Retailer 5$12,146 SGD
Retailer 12$12,618 SGD
Retailer 4$12,724 SGD
Retailer 11$13,670 SGD
Retailer 2$13,818 SGD
Retailer 10$13,880 SGD
Retailer 7$14,560 SGD
Retailer 9$14,856 SGD
Retailer 14$15,773 SGD
Retailer 6$15,844 SGD
Retailer 15$16,603 SGD
Retailer 8$19,812 SGD
NZ Jewellers$21,030 SGD

39 data points across 15 retailers

14 retailers$11,707 SGD to $21,030 SGD

B+
Cheapest Retailer
-
$11,707 SGD
$9,154 USD
B
Retailer 2
-
$12,146 SGD
CA$13,191 CAD
View
Retailer 3
-
$12,618 SGD
$9,866 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$12,724 SGD
$9,949 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$13,670 SGD
$10,689 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$13,818 SGD
£8,508 GBP
View
Retailer 7
-
$13,880 SGD
$10,853 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$14,560 SGD
$11,385 USD
View
B
Retailer 9
-
$14,856 SGD
€11,063 EUR
View
B
Retailer 10
-
$15,773 SGD
$12,333 USD
View
B
Retailer 11
-
$15,844 SGD
$12,389 USD
View
Retailer 12
-
$16,603 SGD
$12,982 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$19,812 SGD
£12,198 GBP
View
Most Expensive
B
NZ Jewellers
240641f6-00a5-4299-b027-002ec89afdb8 · Oct 27
$21,030 SGD
$16,444 USD
View
13 more retailers have this diamond
Prices start from $11,707 SGDSave up to $9,323 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
$11,707 SGD