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Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 7543674333

Certificate GIA 7543674333

Diamond specifications and retailer prices

From $4,710 NZD
As of November 6, 2026
Save $6,290 NZD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,000 NZD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7543674333. Listed at 16 retailers as of November 5, 2026, with prices from $4,710 to $11,000, a $6,290 spread on the same certified stone. NZ Jewellers lists it at $11,000. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7543674333
Dimensions9.06 × 6.35 × 4.01 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
9.06 mm6.35 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7543674333
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,124 NZD|Low: $4,710 NZD|High: $10,684 NZD|Avg: $7,527 NZD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$4,710 NZD
Retailer 1$6,124 NZD
Retailer 3$6,534 NZD
Retailer 2$7,351 NZD
Retailer 4$7,706 NZD
Retailer 5$10,528 NZD

37 data points across 6 retailers

16 retailers$4,710 NZD to $11,000 NZD

A
Cheapest Retailer
-
$4,710 NZD
A
Retailer 2
-
$5,390 NZD
View
A
Retailer 3
-
$5,605 NZD
View
A
Retailer 4
-
$6,079 NZD
View
A
Retailer 5
-
$6,124 NZD
View
Retailer 6
-
$6,314 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$6,314 NZD
View
A
Retailer 8
-
$6,534 NZD
View
Retailer 9
-
$6,555 NZD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$6,557 NZD
View
B+
Retailer 11
-
$6,741 NZD
View
B+
Retailer 12
-
$7,284 NZD
View
B+
Retailer 13
-
$7,351 NZD
View
B+
Retailer 14
-
$7,706 NZD
View
B
Retailer 15
-
$10,528 NZD
View
Most Expensive
B
NZ Jewellers
a167fbd1-0cc6-498b-b95c-4f6b8a2bffc5 · Nov 5
$11,000 NZD
$6,098 USD
View
15 more retailers have this diamond
Prices start from $4,710 NZDSave up to $6,290 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.

A
1.51ct Oval
$4,710 NZD