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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 $5,120 USD
HK$40,000 HKD
As of October 29, 2026
Save $7,220 USD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,340 USD at Diamond Quarter · As of October 29, 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 29, 2026, with prices from $5,120 to $12,340, a $7,220 spread on the same certified stone. Diamond Quarter lists it at $12,340. 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
Color
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: Oct 29
Current: $6,605 USD|Low: $5,120 USD|High: $11,632 USD|Avg: $7,166 USD|-0.9%
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
October 29, 2026
Retailer 6$5,120 USD
Retailer 3$5,636 USD
Retailer 4$6,043 USD
Retailer 2$6,419 USD
Retailer 11$6,420 USD
Retailer 8$6,498 USD
Retailer 1$6,605 USD
Retailer 13$6,955 USD
Retailer 7$6,960 USD
Retailer 12$7,062 USD
Retailer 5$7,115 USD
Retailer 10$7,558 USD
Retailer 15$8,025 USD
Retailer 9$10,301 USD
Retailer 14$11,632 USD

29 data points across 15 retailers

18 retailers$5,120 USD to $12,340 USD

A
Cheapest Retailer
-
$5,120 USD
HK$40,000 HKD
A
Retailer 2
-
$5,636 USD
₹536,737 INR
View
A
Retailer 3
-
$5,890 USD
SGD 7,960 SGD
View
Price last confirmed 15 days ago
A
Retailer 4
-
$6,043 USD
View
A
Retailer 5
-
$6,065 USD
View
B+
Retailer 6
-
$6,419 USD
View
Final sale: no returns
A
Retailer 7
-
$6,420 USD
View
A
Retailer 8
-
$6,498 USD
£5,117 GBP
View
A
Retailer 9
-
$6,605 USD
£5,201 GBP
View
B+
Retailer 10
-
$6,955 USD
View
B+
Retailer 11
-
$6,960 USD
View
B+
Retailer 12
-
$7,062 USD
View
B+
Retailer 13
-
$7,115 USD
View
B+
Retailer 14
-
$7,558 USD
€7,198 EUR
View
B+
Retailer 15
-
$8,025 USD
View
B
Retailer 16
-
$10,301 USD
£8,111 GBP
View
B
Retailer 17
-
$11,632 USD
View
Most Expensive
B
Diamond Quarter
1.5SI2G646416B8N · Oct 29
$12,340 USD
£9,717 GBP
View
17 more retailers have this diamond
Prices start from $5,120 USDSave up to $7,220 USD

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
$5,120 USD