Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 7541535497

Certificate GIA 7541535497

Diamond specifications and retailer prices

From $8,925 SGD
$6,981 USD
As of November 1, 2026
Save $6,959 SGD (44%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $19,061 SGD at NZ Jewellers · As of September 29, 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 I 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 7541535497. Listed at 26 retailers as of November 1, 2026, with a 78% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.56°
Pavilion angle39.19°
OriginNatural
Grading LabGIA
CertificateGIA 7541535497
Dimensions11.16 × 5.87 × 3.75 mm
L/W Ratio1.90
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Natural
Top View
11.16 mm5.87 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7541535497
Side View
Table 60.0%Crown 38.56°Girdle: THK-ETKPavilion 39.19°Culet: NoneDepth 63.8%

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: $11,116 SGD|Low: $8,735 SGD|High: $16,075 SGD|Avg: $11,256 SGD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7$8,925 SGD
Retailer 6$9,529 SGD
Retailer 5$9,530 SGD
Retailer 8$9,610 SGD
Retailer 3$10,537 SGD
Retailer 1$11,116 SGD
Retailer 2$12,450 SGD
Retailer 4$15,883 SGD

38 data points across 8 retailers

26 retailers$8,925 SGD to $15,883 SGD

B+
Cheapest Retailer
-
$8,925 SGD
$6,981 USD
B+
Retailer 2
-
$9,529 SGD
$7,454 USD
View
Final sale: no returns
B+
Retailer 3
-
$9,530 SGD
$7,455 USD
View
Retailer 4
-
$9,530 SGD
$7,455 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$9,610 SGD
$7,517 USD
View
B+
Retailer 6
-
$10,153 SGD
$7,942 USD
View
Retailer 7
-
$10,324 SGD
$8,076 USD
View
Price last confirmed 41 days ago
Retailer 8
-
$10,324 SGD
$8,076 USD
View
Price last confirmed 25 days ago
Retailer 9
-
$10,324 SGD
$8,076 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$10,484 SGD
$8,201 USD
View
Price last confirmed 32 days ago
B+
Retailer 11
-
$10,484 SGD
$8,201 USD
View
B+
Retailer 12
-
$10,537 SGD
£6,490 GBP
View
B
Retailer 13
-
$10,930 SGD
$8,550 USD
View
B
Retailer 14
-
$10,930 SGD
$8,550 USD
View
B+
Retailer 15
-
$11,116 SGD
£6,847 GBP
View
B
Retailer 16
-
$11,288 SGD
$8,830 USD
View
B
Retailer 17
-
$11,913 SGD
$9,319 USD
View
Retailer 18
-
$11,913 SGD
$9,319 USD
View
Price last confirmed 42 days ago
Retailer 19
-
$11,913 SGD
$9,319 USD
View
Price last confirmed 24 days ago
Retailer 20
-
$11,913 SGD
$9,319 USD
View
Price last confirmed 12 days ago
B
Retailer 21
-
$12,450 SGD
€9,275 EUR
View
Retailer 22
-
$12,551 SGD
$9,818 USD
View
Price last confirmed 18 days ago
B
Retailer 23
-
$15,883 SGD
£9,783 GBP
View
Retailer 24
-
$19,061 SGD
$14,910 USD
View
Price last confirmed 42 days ago
Retailer 25
-
$19,061 SGD
$14,910 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
05ef0276-1128-4532-9b9c-db9d5ddd9864 · Sep 29
$19,061 SGD
$14,910 USD
View
Price last confirmed 33 days ago
25 more retailers have this diamond
Prices start from $8,925 SGDSave up to $6,959 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
$8,925 SGD