Round|Natural|GIA

1.50ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 2131663925

Certificate GIA 2131663925

Diamond specifications and retailer prices

From $11,871 USD
As of October 30, 2026
Save $9,451 USD (44%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $23,900 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2131663925. Listed at 23 retailers as of October 29, 2026, with a 80% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2131663925
Dimensions7.30 × 7.24 × 4.54 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.30 mm7.24 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2131663925
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $14,397 USD|Low: $11,316 USD|High: $21,463 USD|Avg: $15,425 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 10$11,871 USD
Retailer 7$11,960 USD
Retailer 8$13,014 USD
Retailer 1$14,397 USD
Retailer 9$14,485 USD
Retailer 6$14,590 USD
Retailer 2$15,277 USD
Retailer 3$16,468 USD
Retailer 5$19,844 USD
Retailer 4$21,322 USD

43 data points across 10 retailers

23 retailers$11,871 USD to $21,322 USD

B
Cheapest Retailer
-
$11,871 USD
B
Retailer 2
-
$11,960 USD
View
B
Retailer 3
-
$12,409 USD
View
B
Retailer 4
-
$12,599 USD
View
B
Retailer 5
-
$12,702 USD
CA$17,641 CAD
View
B
Retailer 6
-
$13,014 USD
View
Final sale: no returns
B
Retailer 7
-
$13,340 USD
View
B
Retailer 8
-
$13,580 USD
View
B
Retailer 9
-
$13,817 USD
View
B
Retailer 10
-
$14,397 USD
£11,336 GBP
View
B
Retailer 11
-
$14,485 USD
View
Retailer 12
-
$14,590 USD
A$22,446 AUD
View
Price last confirmed 7 days ago
B
Retailer 13
-
$14,711 USD
View
B
Retailer 14
-
$15,277 USD
View
B
Retailer 15
-
$15,470 USD
View
B
Retailer 16
-
$15,470 USD
View
B
Retailer 17
-
$15,751 USD
View
B
Retailer 18
-
$15,990 USD
View
B
Retailer 19
-
$16,468 USD
€15,684 EUR
View
B
Retailer 20
-
$19,238 USD
View
B
Retailer 21
-
$19,844 USD
ZAR 320,585 ZAR
View
B
Retailer 22
-
$21,322 USD
£16,789 GBP
View
Most Expensive
Diamond Quarter
1.5SI1G21257AF0N · Oct 29
$23,900 USD
£18,819 GBP
View
Price under review
22 more retailers have this diamond
Prices start from $11,871 USDSave up to $9,451 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.

B
1.50ct Round
$11,871 USD