CaratHunter
Plans
Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1559720724

Certificate GIA 1559720724

Diamond specifications and retailer prices

From $11,152 SGD
$8,720 USD
As of November 1, 2026
Save $9,316 SGD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,468 SGD at NZ Jewellers · As of October 30, 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 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 1559720724. Listed at 15 retailers as of October 30, 2026, with prices from $11,152 to $20,468, a $9,316 spread on the same certified stone. NZ Jewellers lists it at $20,468. 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

1.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559720724
Dimensions11.28 × 5.93 × 3.72 mm
L/W Ratio1.90
Culet sizeNone
Top View
11.28 mm5.93 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559720724
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.8%

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: $13,445 SGD|Low: $11,270 SGD|High: $19,283 SGD|Avg: $14,387 SGD|+0.6%
Retailer 1
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
November 3, 2026
Retailer 12$11,395 SGD
Retailer 13$11,500 SGD
Retailer 11$12,162 SGD
Retailer 14$13,285 SGD
Retailer 2$13,308 SGD
Retailer 1$13,445 SGD
Retailer 7$13,509 SGD
Retailer 4$14,068 SGD
Retailer 6$14,068 SGD
Retailer 5$14,541 SGD
Retailer 8$14,750 SGD
Retailer 3$16,057 SGD
Retailer 10$18,041 SGD
Retailer 9$19,179 SGD

15 data points across 14 retailers

15 retailers$11,152 SGD to $20,468 SGD

B+
Cheapest Retailer
-
$11,152 SGD
$8,720 USD
B+
Retailer 2
-
$11,395 SGD
$8,910 USD
View
B+
Retailer 3
-
$11,500 SGD
$8,992 USD
View
B+
Retailer 4
-
$12,162 SGD
$9,510 USD
View
B+
Retailer 5
-
$13,308 SGD
$10,406 USD
View
B+
Retailer 6
-
$13,445 SGD
£8,278 GBP
View
B+
Retailer 7
-
$13,509 SGD
$10,563 USD
View
B
Retailer 8
-
$14,068 SGD
$11,000 USD
View
B
Retailer 9
-
$14,068 SGD
$11,000 USD
View
B+
Retailer 10
-
$14,541 SGD
$11,370 USD
View
B+
Retailer 11
-
$14,750 SGD
€10,984 EUR
View
B
Retailer 12
-
$15,351 SGD
$12,003 USD
View
B
Retailer 13
-
$18,041 SGD
ZAR 227,899 ZAR
View
B
Retailer 14
-
$19,179 SGD
£11,808 GBP
View
Most Expensive
B
NZ Jewellers
24a3d514-e6c5-44a4-93f6-2286ae657d6d · Oct 30
$20,468 SGD
$16,004 USD
View
14 more retailers have this diamond
Prices start from $11,152 SGDSave up to $9,316 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
$11,152 SGD