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Round|Natural|GIA

1.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1538231733

Certificate GIA 1538231733

Diamond specifications and retailer prices

From $6,700 NZD
HK$29,500 HKD
As of November 1, 2026
Save $8,871 NZD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $15,571 NZD at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538231733. Listed at 20 retailers as of October 28, 2026, with prices from $6,700 to $15,571, a $8,871 spread on the same certified stone. Queensmith lists it at $15,571. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1538231733
Dimensions7.29 × 7.22 × 4.60 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
7.29 mm7.22 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1538231733
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.4%

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 1
Current: $15,571 NZD|Low: $6,700 NZD|High: $15,627 NZD|Avg: $9,619 NZD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$6,700 NZD
Retailer 4$7,163 NZD
Retailer 8$7,773 NZD
Retailer 9$7,844 NZD
Retailer 10$8,089 NZD
Retailer 5$8,141 NZD
Retailer 2$8,587 NZD
Retailer 3$9,874 NZD
Retailer 6$13,957 NZD
Queensmith$15,571 NZD

27 data points across 10 retailers

20 retailers$6,700 NZD to $15,571 NZD

A
Cheapest Retailer
-
$6,700 NZD
HK$29,500 HKD
A
Retailer 2
-
$7,163 NZD
₹384,499 INR
View
A
Retailer 3
-
$7,773 NZD
$4,381 USD
View
A
Retailer 4
-
$7,844 NZD
SGD 5,974 SGD
View
A
Retailer 5
-
$8,089 NZD
$4,559 USD
View
Final sale: no returns
A
Retailer 6
-
$8,141 NZD
£3,613 GBP
View
A
Retailer 7
-
$8,155 NZD
$4,596 USD
View
A
Retailer 8
-
$8,527 NZD
SGD 6,494 SGD
View
A
Retailer 9
-
$8,587 NZD
£3,811 GBP
View
A
Retailer 10
-
$8,730 NZD
$4,920 USD
View
Retailer 11
-
$8,763 NZD
$4,939 USD
View
Price last confirmed 34 days ago
Retailer 12
-
$8,763 NZD
$4,939 USD
View
Price last confirmed 16 days ago
Retailer 13
-
$8,763 NZD
$4,939 USD
View
Price last confirmed 33 days ago
Retailer 14
-
$8,763 NZD
$4,939 USD
View
Price last confirmed 12 days ago
A
Retailer 15
-
$9,032 NZD
$5,090 USD
View
A
Retailer 16
-
$9,874 NZD
€5,300 EUR
View
Retailer 17
-
$10,112 NZD
$5,699 USD
View
Price last confirmed 33 days ago
B+
Retailer 18
-
$13,957 NZD
£6,194 GBP
View
Retailer 19
-
$15,268 NZD
$8,605 USD
View
Price last confirmed 36 days ago
Most Expensive
B
Queensmith
1538231733 · Oct 28
$15,571 NZD
£6,910 GBP
View
19 more retailers have this diamond
Prices start from $6,700 NZDSave up to $8,871 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
$6,700 NZD