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Round|Natural|GIA

1.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 7553318635

Certificate GIA 7553318635

Diamond specifications and retailer prices

From $9,539 NZD
$5,367 USD
As of November 1, 2026
Save $11,236 NZD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $20,775 NZD at NZ Jewellers · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7553318635. Listed at 20 retailers as of November 1, 2026, with prices from $9,539 to $20,775, a $11,236 spread on the same certified stone. NZ Jewellers lists it at $20,775. 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

1.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7553318635
Dimensions7.27 × 7.31 × 4.57 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.27 mm7.31 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553318635
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.7%

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 1
Current: $20,775 NZD|Low: $8,186 NZD|High: $20,775 NZD|Avg: $12,189 NZD
NZ Jewellers
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
Retailer 20
Retailer 21
November 2, 2026
Retailer 12$9,145 NZD
Retailer 4$9,539 NZD
Retailer 6$9,814 NZD
Retailer 18$9,823 NZD
Retailer 8$9,945 NZD
Retailer 5$10,387 NZD
Retailer 10$11,086 NZD
Retailer 13$11,254 NZD
Retailer 20$11,460 NZD
Retailer 9$11,733 NZD
Retailer 16$11,833 NZD
Retailer 19$12,512 NZD
Retailer 21$12,512 NZD
Retailer 3$12,939 NZD
Retailer 14$12,965 NZD
Retailer 15$13,187 NZD
Retailer 2$13,278 NZD
Retailer 11$13,691 NZD
Retailer 7$18,008 NZD
Retailer 17$18,301 NZD
NZ Jewellers$20,775 NZD

29 data points across 21 retailers

20 retailers$9,539 NZD to $20,775 NZD

A
Cheapest Retailer
-
$9,539 NZD
$5,367 USD
A
Retailer 2
-
$9,814 NZD
$5,522 USD
View
A
Retailer 3
-
$9,823 NZD
$5,527 USD
View
A
Retailer 4
-
$9,945 NZD
$5,596 USD
View
A
Retailer 5
-
$10,387 NZD
$5,844 USD
View
Final sale: no returns
A
Retailer 6
-
$11,086 NZD
$6,238 USD
View
A
Retailer 7
-
$11,254 NZD
$6,332 USD
View
A
Retailer 8
-
$11,460 NZD
$6,448 USD
View
B+
Retailer 9
-
$11,579 NZD
$6,515 USD
View
B+
Retailer 10
-
$11,733 NZD
$6,602 USD
View
A
Retailer 11
-
$11,833 NZD
£5,242 GBP
View
B+
Retailer 12
-
$12,512 NZD
$7,040 USD
View
B+
Retailer 13
-
$12,512 NZD
$7,040 USD
View
B+
Retailer 14
-
$12,939 NZD
$7,280 USD
View
B+
Retailer 15
-
$13,187 NZD
£5,842 GBP
View
B+
Retailer 16
-
$13,278 NZD
€7,115 EUR
View
Retailer 17
-
$13,691 NZD
$7,703 USD
View
Price last confirmed 19 days ago
Retailer 18
-
$18,008 NZD
$10,132 USD
View
Price last confirmed 7 days ago
B
Retailer 19
-
$18,301 NZD
£8,108 GBP
View
Most Expensive
B
NZ Jewellers
08651589-c7a7-4dc0-a3b8-920a5177512a · Nov 2
$20,775 NZD
$11,689 USD
View
19 more retailers have this diamond
Prices start from $9,539 NZDSave up to $11,236 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
$9,539 NZD