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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 6565020551

Certificate GIA 6565020551

Diamond specifications and retailer prices

From $6,941 NZD
As of November 6, 2026
Save $8,502 NZD (55%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $16,331 NZD at NZ Jewellers · As of September 26, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6565020551. Listed at 25 retailers as of November 1, 2026, with a 122% 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6565020551
Dimensions7.06 × 7.10 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.06 mm7.10 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565020551
Side View
Table 56.0%Crown 38°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 64.5%

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 6
Current: $9,398 NZD|Low: $6,848 NZD|High: $15,737 NZD|Avg: $9,715 NZD|-1.0%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 2$6,941 NZD
Retailer 6$7,273 NZD
Retailer 10$7,475 NZD
Retailer 5$7,661 NZD
Retailer 4$7,712 NZD
Retailer 19$8,109 NZD
Retailer 17$8,280 NZD
Retailer 18$8,695 NZD
Retailer 1$9,398 NZD
Retailer 11$9,842 NZD
Retailer 7$9,849 NZD
Retailer 12$9,972 NZD
Retailer 8$10,066 NZD
Retailer 13$10,174 NZD
Retailer 14$10,318 NZD
Retailer 9$10,461 NZD
Retailer 15$11,283 NZD
Retailer 3$11,918 NZD
Retailer 16$15,443 NZD

25 data points across 19 retailers

25 retailers$6,941 NZD to $15,443 NZD

A
Cheapest Retailer
-
$6,941 NZD
A
Retailer 2
-
$7,273 NZD
View
Retailer 3
-
$7,475 NZD
View
Price last confirmed 22 days ago
A
Retailer 4
-
$7,661 NZD
View
A
Retailer 5
-
$7,712 NZD
View
A
Retailer 6
-
$8,280 NZD
View
A
Retailer 7
-
$8,695 NZD
View
Retailer 8
-
$9,214 NZD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$9,330 NZD
View
B+
Retailer 10
-
$9,398 NZD
View
B+
Retailer 11
-
$9,631 NZD
View
Retailer 12
-
$9,765 NZD
View
Price last confirmed 29 days ago
Retailer 13
-
$9,765 NZD
View
Price last confirmed 21 days ago
Retailer 14
-
$9,765 NZD
View
Price last confirmed 22 days ago
Retailer 15
-
$9,842 NZD
View
Price last confirmed 28 days ago
B+
Retailer 16
-
$9,849 NZD
View
B+
Retailer 17
-
$9,972 NZD
View
Retailer 18
-
$10,066 NZD
View
Price last confirmed 7 days ago
B+
Retailer 19
-
$10,174 NZD
View
B+
Retailer 20
-
$10,318 NZD
View
Retailer 21
-
$11,265 NZD
View
Price last confirmed 28 days ago
B+
Retailer 22
-
$11,283 NZD
View
B
Retailer 23
-
$11,918 NZD
View
B
Retailer 24
-
$15,443 NZD
View
Most Expensive
NZ Jewellers
e99821fd-24ca-470d-b8fb-9f3c19eadba6 · Sep 26
$16,331 NZD
$9,053 USD
View
Price last confirmed 40 days ago
24 more retailers have this diamond
Prices start from $6,941 NZDSave up to $8,502 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
$6,941 NZD