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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 2566587252

Certificate GIA 2566587252

Diamond specifications and retailer prices

From $9,834 NZD
HK$43,300 HKD
As of November 1, 2026
Save $12,531 NZD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $22,365 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566587252. Listed at 19 retailers as of October 30, 2026, with prices from $9,834 to $22,365, a $12,531 spread on the same certified stone. NZ Jewellers lists it at $22,365. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.21°
Pavilion angle35.59°
OriginNatural
Grading LabGIA
CertificateGIA 2566587252
Dimensions8.83 × 6.26 × 3.98 mm
L/W Ratio1.41
Girdle conditionFaceted
Key to symbols
Cloud, Crystal, Needle
Top View
8.83 mm6.26 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566587252
Side View
Table 62.0%Crown 43.21°Girdle: STK-VTKPavilion 35.59°Culet: NoneDepth 63.6%

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: $22,365 NZD|Low: $9,743 NZD|High: $22,365 NZD|Avg: $13,814 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
October 31, 2026
Retailer 2$9,834 NZD
Retailer 4$10,992 NZD
Retailer 11$11,209 NZD
Retailer 5$11,231 NZD
Retailer 8$11,662 NZD
Retailer 7$11,735 NZD
Retailer 12$12,111 NZD
Retailer 10$12,342 NZD
Retailer 16$12,344 NZD
Retailer 15$12,638 NZD
Retailer 3$12,892 NZD
Retailer 17$13,577 NZD
Retailer 9$13,637 NZD
Retailer 13$14,612 NZD
Retailer 14$15,429 NZD
Retailer 18$16,284 NZD
Retailer 19$18,660 NZD
Retailer 6$19,093 NZD
NZ Jewellers$22,365 NZD

18 data points across 19 retailers

19 retailers$9,834 NZD to $22,365 NZD

B+
Cheapest Retailer
-
$9,834 NZD
HK$43,300 HKD
B+
Retailer 2
-
$10,992 NZD
$6,195 USD
View
Retailer 3
-
$11,209 NZD
SGD 8,537 SGD
View
Price last confirmed 18 days ago
Retailer 4
-
$11,231 NZD
$6,330 USD
View
Price last confirmed 14 days ago
B
Retailer 5
-
$11,532 NZD
SGD 8,783 SGD
View
B
Retailer 6
-
$11,662 NZD
$6,573 USD
View
B
Retailer 7
-
$11,735 NZD
$6,614 USD
View
B
Retailer 8
-
$12,111 NZD
£5,375 GBP
View
B
Retailer 9
-
$12,344 NZD
$6,957 USD
View
B
Retailer 10
-
$12,638 NZD
£5,609 GBP
View
Retailer 11
-
$12,892 NZD
A$11,179 AUD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$13,577 NZD
$7,652 USD
View
B
Retailer 13
-
$13,637 NZD
$7,686 USD
View
B
Retailer 14
-
$14,612 NZD
€7,843 EUR
View
B
Retailer 15
-
$15,429 NZD
$8,696 USD
View
B
Retailer 16
-
$16,284 NZD
ZAR 148,263 ZAR
View
B
Retailer 17
-
$18,660 NZD
£8,281 GBP
View
C
Retailer 18
-
$19,093 NZD
$10,761 USD
View
Most Expensive
C
NZ Jewellers
d5bcc41e-c031-44c4-9f9f-ee524f4ff7bc · Oct 30
$22,365 NZD
$12,605 USD
View
18 more retailers have this diamond
Prices start from $9,834 NZDSave up to $12,531 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
$9,834 NZD