Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 1559633672

Certificate GIA 1559633672

Diamond specifications and retailer prices

From $5,462 USD
As of November 5, 2026
Save $5,091 USD (48%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $12,173 USD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 1559633672. Listed at 26 retailers as of November 4, 2026, with a 93% 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
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 1559633672
Dimensions7.09 × 4.59 × 4.59 mm
L/W Ratio1.54
Culet sizeNone
Top View
7.09 mm4.59 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1559633672
Side View
Table 56.0%Crown 38°Girdle: MED-THKPavilion 40°Culet: NoneDepth 64.6%

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 5
Current: $6,865 USD|Low: $4,674 USD|High: $10,553 USD|Avg: $6,993 USD|+3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
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Retailer 13
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Retailer 15
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
November 6, 2026
Retailer 15$5,462 USD
Retailer 5$5,590 USD
Retailer 8$5,750 USD
Retailer 18$5,756 USD
Retailer 9$5,828 USD
Retailer 2$6,086 USD
Retailer 13$6,087 USD
Retailer 6$6,120 USD
Retailer 10$6,531 USD
Retailer 1$6,865 USD
Retailer 7$6,933 USD
Retailer 4$7,137 USD
Retailer 11$7,150 USD
Retailer 20$7,150 USD
Retailer 3$7,380 USD
Retailer 14$7,440 USD
Retailer 16$7,839 USD
Retailer 12$8,880 USD
Retailer 17$10,116 USD
Retailer 19$10,553 USD

28 data points across 20 retailers

26 retailers$5,462 USD to $10,553 USD

A
Cheapest Retailer
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$5,462 USD
A
Retailer 2
-
$5,590 USD
View
A
Retailer 3
-
$5,750 USD
View
A
Retailer 4
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$5,756 USD
View
A
Retailer 5
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$5,828 USD
View
A
Retailer 6
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$6,086 USD
View
Final sale: no returns
Retailer 7
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$6,087 USD
View
Price last confirmed 25 days ago
A
Retailer 8
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$6,120 USD
View
A
Retailer 9
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$6,299 USD
View
Retailer 10
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$6,531 USD
View
Price last confirmed 23 days ago
Retailer 11
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$6,594 USD
View
Price last confirmed 39 days ago
Retailer 12
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$6,594 USD
View
Price last confirmed 29 days ago
A
Retailer 13
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$6,865 USD
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A
Retailer 14
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$6,933 USD
View
Retailer 15
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$7,137 USD
View
Price last confirmed 33 days ago
A
Retailer 16
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$7,150 USD
View
A
Retailer 17
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$7,150 USD
View
B+
Retailer 18
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$7,380 USD
View
A
Retailer 19
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$7,440 USD
View
Retailer 20
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$7,608 USD
View
Price last confirmed 39 days ago
B+
Retailer 21
-
$7,839 USD
View
B+
Retailer 22
-
$8,880 USD
View
B
Retailer 23
-
$10,116 USD
View
B
Retailer 24
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$10,553 USD
View
Retailer 25
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$12,173 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
85d0aa70-be43-4a96-8d32-61fb0e0511a0 · Sep 28
$12,173 USD
View
Price last confirmed 39 days ago
25 more retailers have this diamond
Prices start from $5,462 USDSave up to $5,091 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
$5,462 USD