Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 3555981329

Certificate GIA 3555981329

Diamond specifications and retailer prices

From $12,757 NZD
$7,178 USD
As of November 2, 2026
Save $4,719 NZD (27%) vs most expensive(unlock to see where)
33 retailers carry this diamond
Most expensive: $28,293 NZD at NZ Jewellers · As of October 23, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555981329. Listed at 33 retailers as of October 26, 2026, with a 37% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.82°
Pavilion angle39.37°
OriginNatural
Grading LabGIA
CertificateGIA 3555981329
Dimensions8.93 × 6.41 × 3.98 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.93 mm6.41 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555981329
Side View
Table 59.0%Crown 39.82°Girdle: MED-THKPavilion 39.37°Culet: NoneDepth 62.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $28,293 NZD|Low: $12,193 NZD|High: $28,293 NZD|Avg: $15,558 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
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Retailer 29
Retailer 30
Retailer 31
Retailer 32
Retailer 33
Retailer 34
Retailer 35
Retailer 36
Retailer 37
October 26, 2026
Retailer 29$12,193 NZD
Retailer 4$12,406 NZD
Retailer 28$12,615 NZD
Retailer 31$12,722 NZD
Retailer 36$12,757 NZD
Retailer 5$13,157 NZD
Retailer 18$13,246 NZD
Retailer 34$13,449 NZD
Retailer 27$13,507 NZD
Retailer 7$13,617 NZD
Retailer 15$14,085 NZD
Retailer 21$14,144 NZD
Retailer 16$14,146 NZD
Retailer 19$14,253 NZD
Retailer 22$15,068 NZD
Retailer 14$15,075 NZD
Retailer 6$15,326 NZD
Retailer 9$15,560 NZD
Retailer 33$15,622 NZD
Retailer 11$15,690 NZD
Retailer 23$15,777 NZD
Retailer 8$15,795 NZD
Retailer 13$15,847 NZD
Retailer 24$15,858 NZD
Retailer 12$16,778 NZD
Retailer 37$16,778 NZD
Retailer 25$16,806 NZD
Retailer 20$16,919 NZD
Retailer 10$17,136 NZD
Retailer 3$17,346 NZD
Retailer 2$17,477 NZD
Retailer 17$17,682 NZD
Retailer 30$19,680 NZD
Retailer 35$20,415 NZD
Retailer 26$20,595 NZD
Retailer 32$23,608 NZD
NZ Jewellers$28,293 NZD

25 data points across 37 retailers

33 retailers$12,757 NZD to $17,477 NZD

Retailer 1
-
$12,406 NZD
$6,980 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$12,757 NZD
$7,178 USD
View
Retailer 3
-
$13,157 NZD
$7,403 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$13,246 NZD
$7,453 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$13,378 NZD
$7,527 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$13,449 NZD
$7,567 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$13,507 NZD
$7,600 USD
View
Price last confirmed 35 days ago
Retailer 8
-
$13,617 NZD
$7,662 USD
View
Price last confirmed 9 days ago
Retailer 9
-
$14,085 NZD
$7,925 USD
View
Price last confirmed 6 days ago
Retailer 10
-
$14,146 NZD
$7,959 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$14,253 NZD
CA$11,138 CAD
View
B+
Retailer 12
-
$15,068 NZD
$8,478 USD
View
Retailer 13
-
$15,075 NZD
$8,482 USD
View
Price last confirmed 8 days ago
Retailer 14
-
$15,326 NZD
$8,623 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$15,560 NZD
$8,755 USD
View
Price last confirmed 8 days ago
Retailer 16
-
$15,622 NZD
A$13,522 AUD
View
Price last confirmed 9 days ago
Retailer 17
-
$15,690 NZD
$8,828 USD
View
Price last confirmed 12 days ago
Retailer 18
-
$15,777 NZD
$8,877 USD
View
Price last confirmed 7 days ago
Retailer 19
-
$15,795 NZD
$8,887 USD
View
Price last confirmed 9 days ago
Retailer 20
-
$15,847 NZD
£7,021 GBP
View
Price last confirmed 7 days ago
Retailer 21
-
$15,858 NZD
£7,026 GBP
View
Price last confirmed 7 days ago
Retailer 22
-
$16,778 NZD
$9,440 USD
View
Price last confirmed 7 days ago
Retailer 23
-
$16,778 NZD
$9,440 USD
View
Price last confirmed 7 days ago
B+
Retailer 24
-
$16,806 NZD
$9,456 USD
View
Retailer 25
-
$16,919 NZD
$9,519 USD
View
Price last confirmed 7 days ago
Retailer 26
-
$17,136 NZD
$9,642 USD
View
Price last confirmed 10 days ago
Retailer 27
-
$17,346 NZD
$9,760 USD
View
Price last confirmed 7 days ago
B+
Retailer 28
-
$17,477 NZD
€9,365 EUR
View
Retailer 29
-
$17,682 NZD
$9,949 USD
View
Price last confirmed 10 days ago
Retailer 30
-
$19,680 NZD
$11,073 USD
View
Price last confirmed 37 days ago
Retailer 31
-
$20,415 NZD
ZAR 185,562 ZAR
View
Price last confirmed 11 days ago
Retailer 32
-
$23,608 NZD
£10,459 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
d9a550a5-6482-46e5-9c74-e03bdc0a4d1f · Oct 23
$28,293 NZD
$15,919 USD
View
Price last confirmed 9 days ago
32 more retailers have this diamond
Prices start from $12,757 NZDSave up to $4,719 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
$12,757 NZD