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Oval|Natural|GIA

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5556995187

Certificate GIA 5556995187

Diamond specifications and retailer prices

From $6,427 NZD
HK$28,300 HKD
As of October 29, 2026
Save $8,674 NZD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $15,101 NZD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556995187. Listed at 21 retailers as of October 27, 2026, with prices from $6,427 to $15,101, a $8,674 spread on the same certified stone. NZ Jewellers lists it at $15,101. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.8°
Pavilion angle38.6°
OriginNatural
Grading LabGIA
CertificateGIA 5556995187
Dimensions8.60 × 6.39 × 4.22 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Top View
8.60 mm6.39 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5556995187
Side View
Table 59.0%Crown 37.8°Girdle: MED-VTKPavilion 38.6°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $15,101 NZD|Low: $6,427 NZD|High: $15,552 NZD|Avg: $8,859 NZD|-2.9%
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
October 29, 2026
Retailer 5$6,427 NZD
Retailer 19$6,650 NZD
Retailer 14$6,742 NZD
Retailer 10$6,909 NZD
Retailer 11$7,248 NZD
Retailer 7$7,853 NZD
Retailer 20$7,853 NZD
Retailer 21$7,853 NZD
Retailer 2$8,085 NZD
Retailer 9$8,309 NZD
Retailer 16$8,446 NZD
Retailer 13$8,619 NZD
Retailer 3$8,836 NZD
Retailer 8$8,836 NZD
Retailer 12$9,060 NZD
Retailer 4$9,120 NZD
Retailer 18$9,244 NZD
Retailer 15$9,571 NZD
Retailer 6$10,082 NZD
Retailer 17$13,878 NZD
NZ Jewellers$15,101 NZD

25 data points across 21 retailers

21 retailers$6,427 NZD to $15,101 NZD

A
Cheapest Retailer
-
$6,427 NZD
HK$28,300 HKD
A
Retailer 2
-
$6,650 NZD
$3,748 USD
View
A
Retailer 3
-
$6,742 NZD
$3,800 USD
View
A
Retailer 4
-
$6,909 NZD
$3,894 USD
View
A
Retailer 5
-
$7,248 NZD
$4,085 USD
View
Final sale: no returns
A
Retailer 6
-
$7,853 NZD
$4,426 USD
View
A
Retailer 7
-
$7,853 NZD
$4,426 USD
View
A
Retailer 8
-
$7,853 NZD
$4,426 USD
View
A
Retailer 9
-
$8,085 NZD
$4,557 USD
View
A
Retailer 10
-
$8,309 NZD
$4,683 USD
View
A
Retailer 11
-
$8,446 NZD
£3,748 GBP
View
A
Retailer 12
-
$8,619 NZD
£3,825 GBP
View
A
Retailer 13
-
$8,836 NZD
$4,980 USD
View
A
Retailer 14
-
$8,836 NZD
$4,980 USD
View
A
Retailer 15
-
$9,060 NZD
$5,106 USD
View
A
Retailer 16
-
$9,120 NZD
$5,140 USD
View
A
Retailer 17
-
$9,244 NZD
€4,962 EUR
View
A
Retailer 18
-
$9,571 NZD
$5,394 USD
View
A
Retailer 19
-
$10,082 NZD
$5,682 USD
View
B+
Retailer 20
-
$13,878 NZD
£6,159 GBP
View
Most Expensive
B
NZ Jewellers
72cea195-2876-4593-b6f0-6e66d96eb4c4 · Oct 27
$15,101 NZD
$8,511 USD
View
20 more retailers have this diamond
Prices start from $6,427 NZDSave up to $8,674 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 Oval
$6,427 NZD