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Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2566386329

Certificate GIA 2566386329

Diamond specifications and retailer prices

From $11,131 SGD
As of October 31, 2026
Save $8,876 SGD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $20,007 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 2566386329. Listed at 17 retailers as of October 30, 2026, with prices from $11,131 to $20,007, a $8,876 spread on the same certified stone. NZ Jewellers lists it at $20,007. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566386329
Dimensions11.08 × 5.84 × 3.77 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
11.08 mm5.84 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566386329
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.6%

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 31
Current: $13,496 SGD|Low: $9,413 SGD|High: $18,748 SGD|Avg: $13,064 SGD
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
November 2, 2026
Retailer 6$9,413 SGD
Retailer 4$11,131 SGD
Retailer 15$11,536 SGD
Retailer 5$11,628 SGD
Retailer 14$11,660 SGD
Retailer 12$11,726 SGD
Retailer 11$12,532 SGD
Retailer 7$12,883 SGD
Retailer 9$13,159 SGD
Retailer 1$13,496 SGD
Retailer 13$13,977 SGD
Retailer 8$14,556 SGD
Retailer 3$15,292 SGD
Retailer 2$16,380 SGD
Retailer 10$18,748 SGD

22 data points across 15 retailers

17 retailers$11,131 SGD to $20,007 SGD

Retailer 1
-
$9,413 SGD
HK$57,500 HKD
Price last confirmed 13 days ago
Retailer 2
-
$10,139 SGD
$7,928 USD
View
Price last confirmed 25 days ago
B+
Retailer 3
-
$11,131 SGD
View
Retailer 4
-
$11,536 SGD
$9,020 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$11,629 SGD
$9,093 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$11,660 SGD
CA$12,663 CAD
View
B+
Retailer 7
-
$11,726 SGD
$9,169 USD
View
B+
Retailer 8
-
$12,532 SGD
$9,799 USD
View
Retailer 9
-
$12,883 SGD
$10,073 USD
View
Price last confirmed 15 days ago
B
Retailer 10
-
$13,159 SGD
£8,102 GBP
View
B
Retailer 11
-
$13,496 SGD
$10,553 USD
View
B
Retailer 12
-
$13,977 SGD
$10,929 USD
View
B
Retailer 13
-
$14,556 SGD
€10,840 EUR
View
Retailer 14
-
$15,292 SGD
ZAR 193,167 ZAR
View
Price last confirmed 16 days ago
Retailer 15
-
$16,380 SGD
£10,085 GBP
View
Price last confirmed 14 days ago
B
Retailer 16
-
$18,748 SGD
£11,543 GBP
View
Most Expensive
B
NZ Jewellers
11a2c466-eaa3-4932-8d53-641ef062e906 · Oct 30
$20,007 SGD
$15,644 USD
View
16 more retailers have this diamond
Prices start from $11,131 SGDSave up to $8,876 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
$11,131 SGD