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Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

ID • G/SI1 • GIA 6561710288

Certificate GIA 6561710288

Diamond specifications and retailer prices

From $11,488 NZD
HK$50,500 HKD
As of November 1, 2026
Save $14,286 NZD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $25,774 NZD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561710288. Listed at 19 retailers as of October 30, 2026, with prices from $11,488 to $25,774, a $14,286 spread on the same certified stone. NZ Jewellers lists it at $25,774. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle40.2°
Pavilion angle38.4°
OriginNatural
Grading LabGIA
CertificateGIA 6561710288
Dimensions9.20 × 6.27 × 4.02 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Top View
9.20 mm6.27 mm1.51 ctG / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561710288
Side View
Table 62.0%Crown 40.2°Girdle: MED-THKPavilion 38.4°Culet: NoneDepth 64.1%

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: $25,774 NZD|Low: $11,170 NZD|High: $25,774 NZD|Avg: $15,536 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
November 2, 2026
Retailer 5$11,488 NZD
Retailer 15$11,771 NZD
Retailer 9$12,004 NZD
Retailer 8$13,406 NZD
Retailer 14$13,735 NZD
Retailer 3$13,827 NZD
Retailer 10$14,005 NZD
Retailer 17$14,165 NZD
Retailer 12$14,226 NZD
Retailer 13$14,241 NZD
Retailer 18$15,411 NZD
Retailer 11$15,465 NZD
Retailer 6$15,848 NZD
Retailer 2$15,952 NZD
Retailer 4$17,185 NZD
Retailer 7$17,782 NZD
Retailer 19$18,932 NZD
Retailer 16$21,477 NZD
NZ Jewellers$25,774 NZD

7 data points across 19 retailers

19 retailers$11,488 NZD to $25,774 NZD

A
Cheapest Retailer
-
$11,488 NZD
HK$50,500 HKD
A
Retailer 2
-
$11,771 NZD
₹630,733 INR
View
B+
Retailer 3
-
$12,004 NZD
A$10,391 AUD
View
B+
Retailer 4
-
$13,406 NZD
$7,543 USD
View
B+
Retailer 5
-
$13,735 NZD
$7,728 USD
View
B+
Retailer 6
-
$13,827 NZD
$7,780 USD
View
B+
Retailer 7
-
$14,005 NZD
$7,880 USD
View
B+
Retailer 8
-
$14,165 NZD
$7,970 USD
View
B+
Retailer 9
-
$14,226 NZD
$8,004 USD
View
Final sale: no returns
B+
Retailer 10
-
$14,241 NZD
£6,309 GBP
View
B
Retailer 11
-
$15,411 NZD
$8,671 USD
View
B
Retailer 12
-
$15,465 NZD
$8,702 USD
View
B+
Retailer 13
-
$15,848 NZD
$8,917 USD
View
B+
Retailer 14
-
$15,952 NZD
€8,548 EUR
View
B
Retailer 15
-
$17,185 NZD
$9,669 USD
View
B
Retailer 16
-
$17,782 NZD
$10,005 USD
View
B
Retailer 17
-
$18,932 NZD
ZAR 172,087 ZAR
View
B
Retailer 18
-
$21,477 NZD
£9,515 GBP
View
Most Expensive
B
NZ Jewellers
05ae28cb-bff9-4b6e-a333-6746b85dc833 · Oct 30
$25,774 NZD
$14,502 USD
View
18 more retailers have this diamond
Prices start from $11,488 NZDSave up to $14,286 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 Oval
$11,488 NZD