Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 5436230726

Certificate GIA 5436230726

Diamond specifications and retailer prices

From $5,734 USD
HK$44,800 HKD
As of November 1, 2026
Save $7,317 USD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,051 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5436230726. Listed at 19 retailers as of October 30, 2026, with prices from $5,734 to $13,051, a $7,317 spread on the same certified stone. NZ Jewellers lists it at $13,051. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5436230726
Dimensions8.65 × 6.39 × 3.97 mm
L/W Ratio1.35
Top View
8.65 mm6.39 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5436230726
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.1%

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: $10,875 USD|Low: $5,454 USD|High: $11,006 USD|Avg: $7,859 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$5,734 USD
Retailer 11$6,095 USD
Retailer 2$6,526 USD
Retailer 9$6,530 USD
Retailer 3$7,178 USD
Retailer 4$7,357 USD
Retailer 10$7,523 USD
Retailer 7$8,527 USD
Retailer 8$8,598 USD
Retailer 5$9,588 USD
Retailer 1$10,875 USD

41 data points across 11 retailers

19 retailers$5,734 USD to $13,051 USD

B+
Cheapest Retailer
-
$5,734 USD
HK$44,800 HKD
B+
Retailer 2
-
$6,095 USD
View
B
Retailer 3
-
$6,526 USD
View
B
Retailer 4
-
$6,526 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,530 USD
View
B
Retailer 6
-
$6,580 USD
View
B
Retailer 7
-
$7,069 USD
View
B
Retailer 8
-
$7,178 USD
View
B
Retailer 9
-
$7,357 USD
£5,793 GBP
View
Retailer 10
-
$7,523 USD
A$11,574 AUD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$7,738 USD
View
B
Retailer 12
-
$7,830 USD
View
B
Retailer 13
-
$7,830 USD
View
B
Retailer 14
-
$8,090 USD
View
B
Retailer 15
-
$8,157 USD
View
B
Retailer 16
-
$8,527 USD
€8,121 EUR
View
B
Retailer 17
-
$9,588 USD
ZAR 154,887 ZAR
View
B
Retailer 18
-
$10,875 USD
£8,563 GBP
View
Most Expensive
C
NZ Jewellers
085bec04-f988-43f7-91dc-f6504d0faaee · Oct 30
$13,051 USD
View
18 more retailers have this diamond
Prices start from $5,734 USDSave up to $7,317 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.

B+
1.51ct Oval
$5,734 USD