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Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 6331458484

Certificate GIA 6331458484

Diamond specifications and retailer prices

From $13,143 NZD
$7,395 USD
As of October 28, 2026
Save $16,335 NZD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $29,478 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6331458484. Listed at 19 retailers as of October 27, 2026, with prices from $13,143 to $29,478, a $16,335 spread on the same certified stone. NZ Jewellers lists it at $29,478. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6331458484
Dimensions9.09 × 6.45 × 4.07 mm
L/W Ratio1.41
Top View
9.09 mm6.45 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6331458484
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

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: Oct 28
Current: $29,478 NZD|Low: $13,143 NZD|High: $29,478 NZD|Avg: $18,076 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
October 28, 2026
Retailer 9$13,143 NZD
Retailer 15$13,799 NZD
Retailer 14$13,916 NZD
Retailer 12$14,654 NZD
Retailer 8$14,739 NZD
Retailer 4$14,862 NZD
Retailer 7$15,967 NZD
Retailer 5$16,213 NZD
Retailer 16$16,330 NZD
Retailer 11$16,390 NZD
Retailer 10$16,699 NZD
Retailer 6$18,423 NZD
Retailer 2$19,229 NZD
Retailer 3$21,250 NZD
Retailer 13$24,596 NZD
NZ Jewellers$29,478 NZD

28 data points across 16 retailers

19 retailers$13,143 NZD to $29,478 NZD

B+
Cheapest Retailer
-
$13,143 NZD
$7,395 USD
B+
Retailer 2
-
$13,799 NZD
$7,764 USD
View
B+
Retailer 3
-
$13,916 NZD
$7,830 USD
View
Retailer 4
-
$14,654 NZD
$8,245 USD
View
Price last confirmed 6 days ago
Retailer 5
-
$14,739 NZD
$8,293 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$14,862 NZD
$8,362 USD
View
B
Retailer 7
-
$15,967 NZD
$8,984 USD
View
Retailer 8
-
$16,213 NZD
$9,122 USD
View
Price last confirmed 8 days ago
Retailer 9
-
$16,330 NZD
A$14,135 AUD
View
Price last confirmed 30 days ago
B+
Retailer 10
-
$16,390 NZD
£7,261 GBP
View
B
Retailer 11
-
$16,699 NZD
£7,398 GBP
View
B
Retailer 12
-
$17,453 NZD
$9,820 USD
View
B
Retailer 13
-
$17,453 NZD
$9,820 USD
View
B
Retailer 14
-
$17,616 NZD
$9,911 USD
View
B
Retailer 15
-
$18,022 NZD
$10,140 USD
View
Retailer 16
-
$18,423 NZD
$10,366 USD
View
Price last confirmed 7 days ago
B
Retailer 17
-
$19,229 NZD
€10,304 EUR
View
Retailer 18
-
$24,596 NZD
£10,897 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
NZ Jewellers
6acc5c54-8f7c-4993-af51-bfe8f63e8e0f · Oct 27
$29,478 NZD
$16,586 USD
View
18 more retailers have this diamond
Prices start from $13,143 NZDSave up to $16,335 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
$13,143 NZD