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Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 1553246271

Certificate GIA 1553246271

Diamond specifications and retailer prices

From $11,181 NZD
$6,291 USD
As of November 1, 2026
Save $12,487 NZD (53%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $23,668 NZD at NZ Jewellers · As of November 2, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553246271. Listed at 25 retailers as of November 1, 2026, with prices from $11,181 to $23,668, a $12,487 spread on the same certified stone. NZ Jewellers lists it at $23,668. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.39°
Pavilion angle40.95°
OriginNatural
Grading LabGIA
CertificateGIA 1553246271
Dimensions8.68 × 6.33 × 4.09 mm
L/W Ratio1.37
Culet sizeNone
Top View
8.68 mm6.33 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553246271
Side View
Table 61.0%Crown 40.39°Girdle: MED-THKPavilion 40.95°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $23,668 NZD|Low: $11,273 NZD|High: $23,668 NZD|Avg: $14,701 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
November 3, 2026
Retailer 9$11,273 NZD
Retailer 6$11,833 NZD
Retailer 18$11,833 NZD
Retailer 12$11,855 NZD
Retailer 11$12,752 NZD
Retailer 20$12,820 NZD
Retailer 19$13,017 NZD
Retailer 2$13,213 NZD
Retailer 13$13,333 NZD
Retailer 4$13,570 NZD
Retailer 3$13,647 NZD
Retailer 8$13,650 NZD
Retailer 10$13,650 NZD
Retailer 7$14,112 NZD
Retailer 5$14,792 NZD
Retailer 14$15,459 NZD
Retailer 16$17,385 NZD
Retailer 15$19,721 NZD
Retailer 17$20,010 NZD
NZ Jewellers$23,668 NZD

31 data points across 20 retailers

25 retailers$11,181 NZD to $23,668 NZD

B+
Cheapest Retailer
-
$11,181 NZD
$6,291 USD
B+
Retailer 2
-
$11,273 NZD
$6,343 USD
View
B+
Retailer 3
-
$11,833 NZD
$6,658 USD
View
B+
Retailer 4
-
$11,833 NZD
$6,658 USD
View
Final sale: no returns
B+
Retailer 5
-
$11,855 NZD
$6,670 USD
View
B+
Retailer 6
-
$12,041 NZD
$6,775 USD
View
B+
Retailer 7
-
$12,600 NZD
$7,089 USD
View
B+
Retailer 8
-
$12,752 NZD
$7,175 USD
View
B+
Retailer 9
-
$12,820 NZD
$7,213 USD
View
B+
Retailer 10
-
$13,017 NZD
$7,324 USD
View
B+
Retailer 11
-
$13,213 NZD
£5,854 GBP
View
B+
Retailer 12
-
$13,333 NZD
£5,907 GBP
View
B+
Retailer 13
-
$13,570 NZD
$7,635 USD
View
Retailer 14
-
$13,647 NZD
A$11,813 AUD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
$13,650 NZD
$7,680 USD
View
B+
Retailer 16
-
$13,650 NZD
$7,680 USD
View
B+
Retailer 17
-
$14,112 NZD
$7,940 USD
View
B
Retailer 18
-
$14,337 NZD
$8,067 USD
View
B
Retailer 19
-
$14,792 NZD
$8,323 USD
View
Retailer 20
-
$14,792 NZD
$8,323 USD
View
Price last confirmed 24 days ago
B
Retailer 21
-
$15,459 NZD
€8,284 EUR
View
B
Retailer 22
-
$17,385 NZD
ZAR 158,021 ZAR
View
B
Retailer 23
-
$19,721 NZD
£8,737 GBP
View
B
Retailer 24
-
$20,010 NZD
£8,865 GBP
View
Most Expensive
B
NZ Jewellers
618cd255-7f3c-4802-b001-fe4b8bd1c12f · Nov 2
$23,668 NZD
$13,317 USD
View
24 more retailers have this diamond
Prices start from $11,181 NZDSave up to $12,487 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.

B+
1.51ct Oval
$11,181 NZD