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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 6532997591

Certificate GIA 6532997591

Diamond specifications and retailer prices

From $10,788 NZD
$6,080 USD
As of October 28, 2026
Save $12,051 NZD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $22,839 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532997591. Listed at 16 retailers as of October 27, 2026, with prices from $10,788 to $22,839, a $12,051 spread on the same certified stone. NZ Jewellers lists it at $22,839. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532997591
Dimensions9.32 × 6.46 × 3.99 mm
L/W Ratio1.44
Top View
9.32 mm6.46 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532997591
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.7%

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: $22,839 NZD|Low: $10,309 NZD|High: $23,163 NZD|Avg: $14,386 NZD|-1.4%
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 29, 2026
Retailer 14$10,309 NZD
Retailer 5$10,788 NZD
Retailer 7$11,419 NZD
Retailer 4$11,515 NZD
Retailer 15$12,370 NZD
Retailer 3$12,562 NZD
Retailer 16$12,810 NZD
Retailer 11$12,816 NZD
Retailer 10$13,394 NZD
Retailer 6$13,715 NZD
Retailer 12$13,715 NZD
Retailer 13$14,177 NZD
Retailer 8$14,274 NZD
Retailer 9$14,899 NZD
Retailer 2$19,133 NZD
NZ Jewellers$22,839 NZD

38 data points across 16 retailers

16 retailers$10,788 NZD to $22,839 NZD

Retailer 1
-
$10,309 NZD
$5,810 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
$10,788 NZD
$6,080 USD
View
Retailer 3
-
$11,419 NZD
$6,436 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$11,515 NZD
$6,490 USD
View
Retailer 5
-
$12,370 NZD
$6,972 USD
View
Price last confirmed 7 days ago
Retailer 6
-
$12,562 NZD
$7,080 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$12,810 NZD
$7,220 USD
View
B+
Retailer 8
-
$12,816 NZD
£5,688 GBP
View
B+
Retailer 9
-
$13,394 NZD
£5,944 GBP
View
B
Retailer 10
-
$13,715 NZD
$7,730 USD
View
B
Retailer 11
-
$13,715 NZD
$7,730 USD
View
B
Retailer 12
-
$14,177 NZD
$7,990 USD
View
B
Retailer 13
-
$14,274 NZD
$8,045 USD
View
B
Retailer 14
-
$14,899 NZD
€7,997 EUR
View
B
Retailer 15
-
$19,133 NZD
£8,491 GBP
View
Most Expensive
B
NZ Jewellers
592d6834-35f2-400e-9273-b620af258013 · Oct 27
$22,839 NZD
$12,872 USD
View
15 more retailers have this diamond
Prices start from $10,788 NZDSave up to $12,051 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
$10,788 NZD