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Marquise|Natural|GIA

1.50ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 6421532753

Certificate GIA 6421532753

Diamond specifications and retailer prices

From $7,254 SGD
As of November 1, 2026
Save $8,916 SGD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $16,170 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6421532753. Listed at 16 retailers as of November 1, 2026, with prices from $7,254 to $16,170, a $8,916 spread on the same certified stone. NZ Jewellers lists it at $16,170. 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

1.50
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6421532753
Dimensions10.58 × 6.12 × 3.70 mm
L/W Ratio1.73
Top View
10.58 mm6.12 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6421532753
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 60.5%

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 1
Current: $9,375 SGD|Low: $7,254 SGD|High: $13,636 SGD|Avg: $9,644 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$7,254 SGD
Retailer 8$8,084 SGD
Retailer 9$8,119 SGD
Retailer 7$8,893 SGD
Retailer 3$9,025 SGD
Retailer 1$9,375 SGD
Retailer 2$9,935 SGD
Retailer 4$11,796 SGD
Retailer 5$13,438 SGD

44 data points across 9 retailers

16 retailers$7,254 SGD to $16,170 SGD

B+
Cheapest Retailer
-
$7,254 SGD
B
Retailer 2
-
$7,552 SGD
View
B
Retailer 3
-
$7,638 SGD
View
Retailer 4
-
$8,084 SGD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$8,119 SGD
View
B
Retailer 6
-
$8,152 SGD
View
B
Retailer 7
-
$8,758 SGD
View
B
Retailer 8
-
$8,893 SGD
View
B
Retailer 9
-
$9,025 SGD
View
B
Retailer 10
-
$9,240 SGD
View
B
Retailer 11
-
$9,375 SGD
View
B
Retailer 12
-
$9,935 SGD
View
B
Retailer 13
-
$10,105 SGD
View
C
Retailer 14
-
$11,796 SGD
View
C
Retailer 15
-
$13,438 SGD
View
Most Expensive
C
NZ Jewellers
410d9d39-bdb2-4718-88e0-f9d91a295208 · Nov 5
$16,170 SGD
$12,617 USD
View
15 more retailers have this diamond
Prices start from $7,254 SGDSave up to $8,916 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+
1.50ct Marquise
$7,254 SGD