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Round|Natural|GIA

1.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6415623764

Certificate GIA 6415623764

Diamond specifications and retailer prices

From $9,175 NZD
HK$40,400 HKD
As of November 1, 2026
Save $12,720 NZD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $21,895 NZD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

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 6415623764. Listed at 18 retailers as of October 31, 2026, with prices from $9,175 to $21,895, a $12,720 spread on the same certified stone. Diamond Quarter lists it at $21,895. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6415623764
Dimensions7.38 × 7.35 × 4.50 mm
L/W Ratio1.00
Top View
7.38 mm7.35 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6415623764
Side View
Table 57.0%CrownGirdle: MED-SLIPavilionCulet: NoneDepth 61.1%

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: $11,755 NZD|Low: $9,084 NZD|High: $20,639 NZD|Avg: $12,756 NZD|-0.6%
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 11$9,175 NZD
Retailer 4$9,999 NZD
Retailer 5$10,722 NZD
Retailer 3$11,389 NZD
Retailer 12$11,391 NZD
Retailer 9$11,464 NZD
Retailer 1$11,755 NZD
Retailer 14$12,340 NZD
Retailer 7$12,349 NZD
Retailer 13$12,530 NZD
Retailer 6$12,624 NZD
Retailer 8$13,423 NZD
Retailer 2$14,239 NZD
Retailer 10$18,180 NZD
Retailer 15$20,639 NZD

31 data points across 15 retailers

18 retailers$9,175 NZD to $21,895 NZD

A
Cheapest Retailer
-
$9,175 NZD
HK$40,400 HKD
A
Retailer 2
-
$9,999 NZD
₹536,737 INR
View
Retailer 3
-
$10,451 NZD
SGD 7,960 SGD
View
Price last confirmed 19 days ago
A
Retailer 4
-
$10,722 NZD
$6,043 USD
View
A
Retailer 5
-
$10,761 NZD
$6,065 USD
View
B+
Retailer 6
-
$11,389 NZD
$6,419 USD
View
Final sale: no returns
A
Retailer 7
-
$11,391 NZD
$6,420 USD
View
A
Retailer 8
-
$11,464 NZD
£5,087 GBP
View
A
Retailer 9
-
$11,755 NZD
£5,217 GBP
View
B+
Retailer 10
-
$12,340 NZD
$6,955 USD
View
B+
Retailer 11
-
$12,349 NZD
$6,960 USD
View
B+
Retailer 12
-
$12,530 NZD
$7,062 USD
View
B+
Retailer 13
-
$12,624 NZD
$7,115 USD
View
B+
Retailer 14
-
$13,423 NZD
€7,205 EUR
View
B+
Retailer 15
-
$14,239 NZD
$8,025 USD
View
B
Retailer 16
-
$18,180 NZD
£8,068 GBP
View
B
Retailer 17
-
$20,639 NZD
$11,632 USD
View
Most Expensive
B
Diamond Quarter
1.5SI2G646416B8N · Oct 31
$21,895 NZD
£9,717 GBP
View
17 more retailers have this diamond
Prices start from $9,175 NZDSave up to $12,720 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
$9,175 NZD