Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

VG • F/SI1 • GIA 6525635517

Certificate GIA 6525635517

Diamond specifications and retailer prices

From $6,515 USD
HK$50,900 HKD
Save $5,957 USD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,473 USD at MOH London
View at MOH London

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6525635517. Listed at 14 retailers, with prices from $6,515 to $12,473 at MOH London, a $5,957 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
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6525635517
Dimensions8.89 × 6.30 × 4.04 mm
L/W Ratio1.41
Top View
8.89 mm6.30 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6525635517
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 64.1%

Caratlytics Score

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

Price History

Last verified: Sep 28
Current: $12,473 USD|Low: $6,515 USD|High: $12,473 USD|Avg: $8,527 USD|+1.1%
MOH London
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
October 1, 2026
Retailer 3$6,515 USD
Retailer 10$7,482 USD
Retailer 6$7,490 USD
Retailer 4$7,516 USD
Retailer 2$7,551 USD
Retailer 9$7,643 USD
Retailer 8$7,856 USD
Retailer 16$8,065 USD
Retailer 15$8,335 USD
Retailer 12$8,351 USD
Retailer 13$8,428 USD
Retailer 5$8,856 USD
Retailer 7$9,361 USD
Retailer 11$9,482 USD
Retailer 14$10,662 USD
MOH London$12,473 USD

39 data points across 16 retailers

14 retailers$6,515 USD to $12,473 USD

B+
Cheapest Retailer
-
$6,515 USD
HK$50,900 HKD
B+
Retailer 2
-
$7,482 USD
View
B+
Retailer 3
-
$7,490 USD
SGD 10,121 SGD
View
B+
Retailer 4
-
$7,516 USD
View
Price last confirmed 32 days ago
B+
Retailer 5
-
$7,551 USD
View
B+
Retailer 6
-
$7,643 USD
View
B+
Retailer 7
-
$8,065 USD
A$12,408 AUD
View
B
Retailer 8
-
$8,351 USD
£6,576 GBP
View
B+
Retailer 9
-
$8,354 USD
£6,578 GBP
View
B
Retailer 10
-
$8,428 USD
A$12,966 AUD
View
B
Retailer 11
-
$8,856 USD
View
B
Retailer 12
-
$9,482 USD
€9,030 EUR
View
B
Retailer 13
-
$10,662 USD
ZAR 172,243 ZAR
View
Most Expensive
B
MOH London
B30D28952 · Oct 1
$12,473 USD
£9,821 GBP
View
13 more retailers have this diamond
Prices start from $6,515 USDSave up to $5,957 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
$6,515 USD