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Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 3545894934

Certificate GIA 3545894934

Diamond specifications and retailer prices

From $8,316 NZD
As of November 5, 2026
Save $9,286 NZD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $17,602 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 3545894934. Listed at 21 retailers as of November 5, 2026, with prices from $8,316 to $17,602, a $9,286 spread on the same certified stone. NZ Jewellers lists it at $17,602. 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

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 3545894934
Dimensions7.06 × 7.17 × 4.63 mm
L/W Ratio1.02
Top View
7.06 mm7.17 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 3545894934
Side View
Table 56.0%Crown 38.5°Girdle: MED-THKPavilion 40.2°Culet: NDepth 65.0%

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: $10,766 NZD|Low: $8,067 NZD|High: $15,672 NZD|Avg: $10,359 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12$8,316 NZD
Retailer 10$8,415 NZD
Retailer 11$8,799 NZD
Retailer 3$8,947 NZD
Retailer 4$9,198 NZD
Retailer 8$10,098 NZD
Retailer 2$10,540 NZD
Retailer 1$10,766 NZD
Retailer 7$11,410 NZD
Retailer 6$11,442 NZD
Retailer 5$12,840 NZD
Retailer 9$15,463 NZD

36 data points across 12 retailers

21 retailers$8,316 NZD to $17,602 NZD

B+
Cheapest Retailer
-
$8,316 NZD
A
Retailer 2
-
$8,415 NZD
View
B+
Retailer 3
-
$8,799 NZD
View
Final sale: no returns
B+
Retailer 4
-
$8,947 NZD
View
B+
Retailer 5
-
$9,198 NZD
View
Retailer 6
-
$9,535 NZD
View
Price last confirmed 51 days ago
B+
Retailer 7
-
$9,535 NZD
View
Retailer 8
-
$9,535 NZD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$9,535 NZD
View
B+
Retailer 10
-
$10,098 NZD
View
Retailer 11
-
$10,540 NZD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$10,766 NZD
View
Retailer 13
-
$11,002 NZD
View
Price last confirmed 46 days ago
B+
Retailer 14
-
$11,002 NZD
View
B+
Retailer 15
-
$11,410 NZD
View
B
Retailer 16
-
$11,442 NZD
View
Retailer 17
-
$11,610 NZD
View
Price last confirmed 15 days ago
B
Retailer 18
-
$12,840 NZD
View
B
Retailer 19
-
$15,463 NZD
View
Retailer 20
-
$17,602 NZD
View
Price last confirmed 49 days ago
Most Expensive
C
NZ Jewellers
2e0273fb-c338-4381-9582-6e861e1a2774 · Nov 5
$17,602 NZD
$9,758 USD
View
20 more retailers have this diamond
Prices start from $8,316 NZDSave up to $9,286 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
1.51ct Round
$8,316 NZD