Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 2554554972

Certificate GIA 2554554972

Diamond specifications and retailer prices

From $11,588 SGD
$9,061 USD
As of November 1, 2026
Save $7,964 SGD (41%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $20,865 SGD at NZ Jewellers · As of September 18, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2554554972. Listed at 25 retailers as of November 1, 2026, with a 69% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.93°
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 2554554972
Dimensions10.88 × 5.79 × 3.78 mm
L/W Ratio1.88
Culet sizeNone
Top View
10.88 mm5.79 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554554972
Side View
Table 61.0%Crown 40.93°Girdle: VTN-VTKPavilion 39°Culet: NoneDepth 65.3%

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: $15,044 SGD|Low: $9,962 SGD|High: $19,788 SGD|Avg: $13,763 SGD|+2.0%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 15$10,996 SGD
Retailer 11$11,588 SGD
Retailer 5$11,616 SGD
Retailer 6$11,925 SGD
Retailer 20$11,955 SGD
Retailer 8$12,393 SGD
Retailer 21$12,518 SGD
Retailer 7$13,352 SGD
Retailer 12$13,596 SGD
Retailer 2$13,723 SGD
Retailer 4$13,815 SGD
Retailer 22$13,912 SGD
Retailer 18$13,946 SGD
Retailer 3$14,124 SGD
Retailer 9$14,516 SGD
Retailer 14$14,516 SGD
Retailer 13$14,928 SGD
Retailer 10$15,001 SGD
Retailer 1$15,044 SGD
Retailer 19$15,232 SGD
Retailer 17$18,392 SGD
Retailer 16$19,552 SGD

24 data points across 22 retailers

25 retailers$11,588 SGD to $19,552 SGD

B+
Cheapest Retailer
-
$11,588 SGD
$9,061 USD
B+
Retailer 2
-
$11,616 SGD
$9,083 USD
View
B+
Retailer 3
-
$11,736 SGD
A$14,118 AUD
View
B+
Retailer 4
-
$11,925 SGD
$9,324 USD
View
B+
Retailer 5
-
$11,955 SGD
$9,348 USD
View
B+
Retailer 6
-
$12,393 SGD
$9,690 USD
View
B+
Retailer 7
-
$12,518 SGD
$9,788 USD
View
Final sale: no returns
Retailer 8
-
$12,519 SGD
$9,789 USD
View
Price last confirmed 21 days ago
B
Retailer 9
-
$13,352 SGD
$10,441 USD
View
B+
Retailer 10
-
$13,596 SGD
£8,371 GBP
View
B
Retailer 11
-
$13,723 SGD
A$16,508 AUD
View
B
Retailer 12
-
$13,815 SGD
$10,803 USD
View
Retailer 13
-
$13,912 SGD
A$16,736 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$13,946 SGD
$10,905 USD
View
Retailer 15
-
$14,124 SGD
$11,044 USD
View
Price last confirmed 22 days ago
B
Retailer 16
-
$14,516 SGD
$11,350 USD
View
B
Retailer 17
-
$14,516 SGD
$11,350 USD
View
B
Retailer 18
-
$14,928 SGD
$11,673 USD
View
B
Retailer 19
-
$15,001 SGD
$11,730 USD
View
B
Retailer 20
-
$15,044 SGD
€11,203 EUR
View
B
Retailer 21
-
$15,232 SGD
$11,910 USD
View
Retailer 22
-
$15,650 SGD
$12,237 USD
View
Price last confirmed 48 days ago
B
Retailer 23
-
$18,392 SGD
ZAR 232,333 ZAR
View
B
Retailer 24
-
$19,552 SGD
£12,038 GBP
View
Most Expensive
NZ Jewellers
02c2926f-3f2e-4ef0-89ee-d0ef006a7298 · Sep 18
$20,865 SGD
$16,315 USD
View
Price last confirmed 45 days ago
24 more retailers have this diamond
Prices start from $11,588 SGDSave up to $7,964 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
$11,588 SGD