Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 2566587252

Certificate GIA 2566587252

Diamond specifications and retailer prices

From $5,542 USD
HK$43,300 HKD
As of November 1, 2026
Save $7,063 USD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,605 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 2566587252. Listed at 20 retailers as of October 30, 2026, with prices from $5,542 to $12,605, a $7,063 spread on the same certified stone. NZ Jewellers lists it at $12,605. 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
SymmetryExcellent
FluorescenceNone
Crown angle43.21°
Pavilion angle35.59°
OriginNatural
Grading LabGIA
CertificateGIA 2566587252
Dimensions8.83 × 6.26 × 3.98 mm
L/W Ratio1.41
Girdle conditionFaceted
Key to symbols
Cloud, Crystal, Needle
Top View
8.83 mm6.26 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566587252
Side View
Table 62.0%Crown 43.21°Girdle: STK-VTKPavilion 35.59°Culet: NoneDepth 63.6%

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: $12,605 USD|Low: $5,491 USD|High: $12,605 USD|Avg: $7,786 USD
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
October 31, 2026
Retailer 2$5,542 USD
Retailer 4$6,195 USD
Retailer 11$6,317 USD
Retailer 5$6,330 USD
Retailer 8$6,573 USD
Retailer 7$6,614 USD
Retailer 12$6,826 USD
Retailer 10$6,956 USD
Retailer 16$6,957 USD
Retailer 15$7,123 USD
Retailer 3$7,266 USD
Retailer 17$7,652 USD
Retailer 9$7,686 USD
Retailer 13$8,235 USD
Retailer 14$8,696 USD
Retailer 18$9,177 USD
Retailer 19$10,517 USD
Retailer 6$10,761 USD
NZ Jewellers$12,605 USD

18 data points across 19 retailers

20 retailers$5,542 USD to $12,605 USD

B+
Cheapest Retailer
-
$5,542 USD
HK$43,300 HKD
B+
Retailer 2
-
$6,195 USD
View
Retailer 3
-
$6,317 USD
SGD 8,537 SGD
View
Price last confirmed 17 days ago
Retailer 4
-
$6,330 USD
View
Price last confirmed 14 days ago
B
Retailer 5
-
$6,499 USD
SGD 8,783 SGD
View
B
Retailer 6
-
$6,573 USD
View
B
Retailer 7
-
$6,614 USD
View
B
Retailer 8
-
$6,826 USD
£5,375 GBP
View
B
Retailer 9
-
$6,956 USD
View
Final sale: no returns
B
Retailer 10
-
$6,957 USD
View
B
Retailer 11
-
$7,123 USD
£5,609 GBP
View
Retailer 12
-
$7,266 USD
A$11,179 AUD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$7,652 USD
View
B
Retailer 14
-
$7,686 USD
View
B
Retailer 15
-
$8,235 USD
€7,843 EUR
View
B
Retailer 16
-
$8,696 USD
View
B
Retailer 17
-
$9,177 USD
ZAR 148,263 ZAR
View
B
Retailer 18
-
$10,517 USD
£8,281 GBP
View
C
Retailer 19
-
$10,761 USD
View
Most Expensive
C
NZ Jewellers
d5bcc41e-c031-44c4-9f9f-ee524f4ff7bc · Oct 30
$12,605 USD
View
19 more retailers have this diamond
Prices start from $5,542 USDSave up to $7,063 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
$5,542 USD