Oval|Natural|GIA

1.20ct H SI1 Oval Natural Diamond

ID • H/SI1 • GIA 1535471401

Certificate GIA 1535471401

Diamond specifications and retailer prices

From $2,892 USD
As of November 6, 2026
Save $3,642 USD (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,648 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1535471401. Listed at 24 retailers as of November 5, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1535471401
Dimensions9.10 × 5.56 × 3.60 mm
L/W Ratio1.64
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud, Crystal, Cavity, Needle, Indented Natural, Natural
Top View
9.10 mm5.56 mm1.20 ctH / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1535471401
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.6%

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 6
Current: $6,648 USD|Low: $2,892 USD|High: $6,750 USD|Avg: $4,508 USD
Queensmith
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
Retailer 20
November 6, 2026
Retailer 14$2,892 USD
Retailer 13$2,991 USD
Retailer 4$3,427 USD
Retailer 20$3,461 USD
Retailer 3$3,509 USD
Retailer 12$3,560 USD
Retailer 15$3,638 USD
Retailer 17$3,641 USD
Retailer 6$3,688 USD
Retailer 11$3,874 USD
Retailer 16$3,896 USD
Retailer 7$3,947 USD
Retailer 2$3,960 USD
Retailer 9$4,007 USD
Retailer 19$4,327 USD
Retailer 18$4,365 USD
Retailer 10$4,762 USD
Retailer 8$6,452 USD
Retailer 5$6,534 USD
Queensmith$6,648 USD

21 data points across 20 retailers

24 retailers$2,892 USD to $6,534 USD

B+
Cheapest Retailer
-
$2,892 USD
B+
Retailer 2
-
$2,991 USD
View
B+
Retailer 3
-
$3,427 USD
View
B+
Retailer 4
-
$3,461 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,509 USD
View
Retailer 6
-
$3,560 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$3,638 USD
View
B+
Retailer 8
-
$3,641 USD
View
B+
Retailer 9
-
$3,661 USD
View
B+
Retailer 10
-
$3,665 USD
View
B+
Retailer 11
-
$3,688 USD
View
Retailer 12
-
$3,874 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$3,896 USD
View
B+
Retailer 14
-
$3,947 USD
View
B+
Retailer 15
-
$3,960 USD
View
B
Retailer 16
-
$3,996 USD
View
B+
Retailer 17
-
$4,007 USD
View
Retailer 18
-
$4,187 USD
View
Price last confirmed 33 days ago
B
Retailer 19
-
$4,327 USD
View
B
Retailer 20
-
$4,365 USD
View
B
Retailer 21
-
$4,762 USD
View
B
Retailer 22
-
$6,452 USD
View
B
Retailer 23
-
$6,534 USD
View
Most Expensive
Queensmith
1535471401 · Oct 28
$6,648 USD
£5,235 GBP
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from $2,892 USDSave up to $3,642 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+
1.20ct Oval
$2,892 USD