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Round|Natural|GIA

1.50ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7558599604

Certificate GIA 7558599604

Diamond specifications and retailer prices

From $9,851 NZD
As of November 6, 2026
Save $7,588 NZD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $17,439 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 7558599604. Listed at 13 retailers as of November 4, 2026, with prices from $9,851 to $17,439, a $7,588 spread on the same certified stone. MOH London lists it at $17,439. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7558599604
Dimensions7.25 × 7.29 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Knot, Feather, Cloud, Needle
Top View
7.25 mm7.29 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558599604
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $17,439 NZD|Low: $9,851 NZD|High: $18,692 NZD|Avg: $12,961 NZD|-6.6%
MOH London
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 6, 2026
Retailer 3$9,851 NZD
Retailer 15$9,988 NZD
Retailer 12$10,351 NZD
Retailer 6$10,618 NZD
Retailer 13$10,932 NZD
Retailer 14$10,955 NZD
Retailer 9$11,197 NZD
Retailer 8$12,155 NZD
Retailer 7$12,294 NZD
Retailer 2$12,532 NZD
Retailer 4$13,203 NZD
Retailer 11$13,695 NZD
Retailer 10$14,480 NZD
Retailer 5$14,514 NZD
MOH London$17,439 NZD

36 data points across 15 retailers

13 retailers$9,851 NZD to $17,439 NZD

A
Cheapest Retailer
-
$9,851 NZD
A
Retailer 2
-
$9,988 NZD
View
A
Retailer 3
-
$10,351 NZD
View
Retailer 4
-
$10,618 NZD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$10,932 NZD
View
A
Retailer 6
-
$10,955 NZD
View
Final sale: no returns
A
Retailer 7
-
$11,197 NZD
View
A
Retailer 8
-
$12,155 NZD
View
Retailer 9
-
$12,294 NZD
View
Price last confirmed 33 days ago
A
Retailer 10
-
$12,532 NZD
View
B+
Retailer 11
-
$13,695 NZD
View
B+
Retailer 12
-
$14,480 NZD
View
Most Expensive
B+
MOH London
CAF7B46BD · Nov 4
$17,439 NZD
£7,612 GBP
View
12 more retailers have this diamond
Prices start from $9,851 NZDSave up to $7,588 NZD

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.

A
1.50ct Round
$9,851 NZD