Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

ID • F/SI2 • GIA 1537184523

Certificate GIA 1537184523

Diamond specifications and retailer prices

From $6,506 USD
As of November 1, 2026
Save $7,268 USD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $13,774 USD 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1537184523. Listed at 14 retailers as of October 30, 2026, with prices from $6,506 to $13,774, a $7,268 spread on the same certified stone. NZ Jewellers lists it at $13,774. 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
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle41.63°
Pavilion angle37.07°
OriginNatural
Grading LabGIA
CertificateGIA 1537184523
Dimensions9.04 × 6.14 × 3.89 mm
L/W Ratio1.47
Girdle conditionExtremely Thick
Key to symbols
Crystal, Twinning Wisp, Feather, Indented Natural
Top View
9.04 mm6.14 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1537184523
Side View
Table 57.0%Crown 41.63°Girdle: ThickPavilion 37.07°Culet: NoneDepth 63.3%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $13,774 USD|Low: $6,506 USD|High: $14,426 USD|Avg: $8,971 USD|-4.5%
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
November 2, 2026
Retailer 4$6,506 USD
Retailer 14$6,849 USD
Retailer 6$6,887 USD
Retailer 10$6,944 USD
Retailer 3$7,461 USD
Retailer 5$7,576 USD
Retailer 7$7,771 USD
Retailer 13$7,882 USD
Retailer 2$8,341 USD
Retailer 12$8,609 USD
Retailer 11$8,897 USD
Retailer 9$9,071 USD
Retailer 8$11,477 USD
NZ Jewellers$13,774 USD

42 data points across 14 retailers

14 retailers$6,506 USD to $13,774 USD

A
Cheapest Retailer
-
$6,506 USD
B+
Retailer 2
-
$6,849 USD
CA$9,513 CAD
View
B+
Retailer 3
-
$6,887 USD
View
B+
Retailer 4
-
$6,944 USD
View
B+
Retailer 5
-
$7,461 USD
View
B+
Retailer 6
-
$7,576 USD
View
B+
Retailer 7
-
$7,771 USD
£6,119 GBP
View
B+
Retailer 8
-
$7,882 USD
View
B+
Retailer 9
-
$8,164 USD
View
B+
Retailer 10
-
$8,341 USD
€7,944 EUR
View
B
Retailer 11
-
$8,609 USD
View
B+
Retailer 12
-
$8,897 USD
View
B
Retailer 13
-
$11,477 USD
£9,037 GBP
View
Most Expensive
B
NZ Jewellers
6b4413de-67c2-4282-a7dc-0c7212a8737d · Oct 30
$13,774 USD
View
13 more retailers have this diamond
Prices start from $6,506 USDSave up to $7,268 USD

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
$6,506 USD