CaratHunter
Plans
Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 5526668826

Certificate GIA 5526668826

Diamond specifications and retailer prices

From $12,102 NZD
$6,809 USD
As of November 1, 2026
Save $13,747 NZD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $25,849 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 I 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 5526668826. Listed at 20 retailers as of November 1, 2026, with prices from $12,102 to $25,849, a $13,747 spread on the same certified stone. NZ Jewellers lists it at $25,849. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5526668826
Dimensions9.41 × 6.18 × 3.99 mm
L/W Ratio1.52
Top View
9.41 mm6.18 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5526668826
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: 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: $25,849 NZD|Low: $11,847 NZD|High: $25,849 NZD|Avg: $16,097 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
November 2, 2026
Retailer 15$12,102 NZD
Retailer 14$12,912 NZD
Retailer 13$12,925 NZD
Retailer 3$13,150 NZD
Retailer 7$14,002 NZD
Retailer 4$14,217 NZD
Retailer 8$14,283 NZD
Retailer 5$14,304 NZD
Retailer 12$14,635 NZD
Retailer 11$15,622 NZD
Retailer 6$16,156 NZD
Retailer 2$16,885 NZD
Retailer 10$18,987 NZD
Retailer 9$21,540 NZD
NZ Jewellers$25,849 NZD

41 data points across 15 retailers

20 retailers$12,102 NZD to $25,849 NZD

B+
Cheapest Retailer
-
$12,102 NZD
$6,809 USD
B
Retailer 2
-
$12,912 NZD
$7,265 USD
View
B
Retailer 3
-
$12,925 NZD
$7,272 USD
View
B
Retailer 4
-
$12,925 NZD
$7,272 USD
View
Final sale: no returns
B
Retailer 5
-
$13,150 NZD
$7,399 USD
View
B
Retailer 6
-
$14,002 NZD
$7,878 USD
View
B
Retailer 7
-
$14,217 NZD
$7,999 USD
View
B+
Retailer 8
-
$14,283 NZD
£6,328 GBP
View
B
Retailer 9
-
$14,304 NZD
$8,048 USD
View
Retailer 10
-
$14,635 NZD
A$12,668 AUD
View
Price last confirmed 12 days ago
B
Retailer 11
-
$15,409 NZD
$8,670 USD
View
B
Retailer 12
-
$15,409 NZD
$8,670 USD
View
B
Retailer 13
-
$15,506 NZD
$8,724 USD
View
Retailer 14
-
$15,622 NZD
$8,790 USD
View
Price last confirmed 7 days ago
B
Retailer 15
-
$15,925 NZD
$8,960 USD
View
B
Retailer 16
-
$16,156 NZD
$9,090 USD
View
B
Retailer 17
-
$16,885 NZD
€9,048 EUR
View
B
Retailer 18
-
$18,987 NZD
ZAR 172,588 ZAR
View
B
Retailer 19
-
$21,540 NZD
£9,543 GBP
View
Most Expensive
B
NZ Jewellers
46340976-d7d4-470f-9b56-6b02ff4253f8 · Nov 2
$25,849 NZD
$14,544 USD
View
19 more retailers have this diamond
Prices start from $12,102 NZDSave up to $13,747 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
$12,102 NZD