Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

VG • H/SI2 • GIA 6521918477

Certificate GIA 6521918477

Diamond specifications and retailer prices

From $5,926 USD
Save $7,003 USD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,929 USD at NZ Jewellers
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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6521918477. Listed at 19 retailers, with prices from $5,926 to $12,929 at NZ Jewellers, a $7,003 spread on the same certified stone. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6521918477
Dimensions9.25 × 6.32 × 4.02 mm
L/W Ratio1.46
Top View
9.25 mm6.32 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521918477
Side View
Table 59.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $6,107 USD|Low: $5,926 USD|High: $10,903 USD|Avg: $7,893 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 1, 2026
Retailer 5$5,926 USD
Retailer 11$6,065 USD
Retailer 2$6,078 USD
Retailer 1$6,107 USD
Retailer 12$6,465 USD
Retailer 4$6,885 USD
Retailer 9$7,344 USD
Retailer 7$7,560 USD
Retailer 6$8,288 USD
Retailer 3$9,216 USD
Retailer 8$10,903 USD
Retailer 10$10,903 USD

35 data points across 12 retailers

19 retailers$5,926 USD to $12,929 USD

B+
Cheapest Retailer
-
$5,926 USD
B+
Retailer 2
-
$6,065 USD
View
B+
Retailer 3
-
$6,078 USD
View
Price last confirmed 32 days ago
B+
Retailer 4
-
$6,107 USD
View
B+
Retailer 5
-
$6,465 USD
View
B+
Retailer 6
-
$6,885 USD
View
B+
Retailer 7
-
$7,003 USD
View
B
Retailer 8
-
$7,111 USD
View
B
Retailer 9
-
$7,360 USD
£5,795 GBP
View
B
Retailer 10
-
$7,470 USD
View
B
Retailer 11
-
$7,470 USD
View
B
Retailer 12
-
$7,560 USD
£5,952 GBP
View
B
Retailer 13
-
$7,720 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$8,081 USD
View
B
Retailer 15
-
$8,288 USD
€7,893 EUR
View
B
Retailer 16
-
$9,216 USD
ZAR 148,891 ZAR
View
Price last confirmed 42 days ago
B
Retailer 17
-
$10,903 USD
£8,585 GBP
View
B
Retailer 18
-
$10,903 USD
£8,585 GBP
View
Most Expensive
B
NZ Jewellers
e3fae3d2-ff23-4fbc-97c4-a2e15582877a · Sep 29
$12,929 USD
View
18 more retailers have this diamond
Prices start from $5,926 USDSave up to $7,003 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.

B+
1.51ct Oval
$5,926 USD