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Round|Natural|GIA

1.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1559762644

Certificate GIA 1559762644

Diamond specifications and retailer prices

From $8,549 NZD
$4,818 USD
As of October 31, 2026
Save $10,376 NZD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $18,925 NZD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559762644. Listed at 20 retailers as of October 30, 2026, with prices from $8,549 to $18,925, a $10,376 spread on the same certified stone. NZ Jewellers lists it at $18,925. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1559762644
Dimensions7.28 × 7.33 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.28 mm7.33 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559762644
Side View
Table 59.0%Crown 36°Girdle: STK-STKPavilion 41°Culet: NoneDepth 62.4%

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: Oct 31
Current: $18,925 NZD|Low: $8,549 NZD|High: $18,925 NZD|Avg: $12,180 NZD|+17.3%
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
November 2, 2026
Retailer 11$8,549 NZD
Retailer 8$8,667 NZD
Retailer 6$8,941 NZD
Retailer 5$9,462 NZD
Retailer 3$10,252 NZD
Retailer 13$10,252 NZD
Retailer 14$10,252 NZD
Retailer 2$10,693 NZD
Retailer 4$11,827 NZD
Retailer 7$12,311 NZD
Retailer 9$13,666 NZD
Retailer 10$16,670 NZD
Retailer 12$17,666 NZD
NZ Jewellers$18,925 NZD

25 data points across 14 retailers

20 retailers$8,549 NZD to $18,925 NZD

A
Cheapest Retailer
-
$8,549 NZD
$4,818 USD
A
Retailer 2
-
$8,667 NZD
$4,885 USD
View
A
Retailer 3
-
$8,941 NZD
$5,039 USD
View
B+
Retailer 4
-
$9,462 NZD
$5,333 USD
View
Final sale: no returns
B+
Retailer 5
-
$10,120 NZD
$5,703 USD
View
B+
Retailer 6
-
$10,252 NZD
$5,778 USD
View
B+
Retailer 7
-
$10,252 NZD
$5,778 USD
View
B+
Retailer 8
-
$10,252 NZD
$5,778 USD
View
B+
Retailer 9
-
$10,303 NZD
$5,807 USD
View
B+
Retailer 10
-
$10,693 NZD
£4,745 GBP
View
B+
Retailer 11
-
$11,001 NZD
$6,200 USD
View
B+
Retailer 12
-
$11,001 NZD
$6,200 USD
View
B+
Retailer 13
-
$11,356 NZD
$6,400 USD
View
B+
Retailer 14
-
$11,827 NZD
$6,666 USD
View
B+
Retailer 15
-
$12,311 NZD
€6,608 EUR
View
Retailer 16
-
$12,479 NZD
$7,033 USD
View
Price last confirmed 18 days ago
B+
Retailer 17
-
$13,666 NZD
£6,065 GBP
View
B
Retailer 18
-
$16,670 NZD
£7,398 GBP
View
B
Retailer 19
-
$17,666 NZD
£7,840 GBP
View
Most Expensive
B
NZ Jewellers
acae055a-3203-40ce-bc1b-966d8c4cac9b · Oct 30
$18,925 NZD
$10,666 USD
View
19 more retailers have this diamond
Prices start from $8,549 NZDSave up to $10,376 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
$8,549 NZD