Oval|Natural|GIA

1.20ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1543538328

Certificate GIA 1543538328

Diamond specifications and retailer prices

From $2,368 USD
As of November 6, 2026
Save $2,828 USD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,039 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 1543538328. Listed at 22 retailers as of November 4, 2026, with a 119% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543538328
Dimensions8.03 × 5.91 × 3.72 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
8.03 mm5.91 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543538328
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,039 USD|Low: $2,368 USD|High: $6,058 USD|Avg: $3,448 USD|+2.5%
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
November 6, 2026
Retailer 3$2,368 USD
Retailer 2$2,466 USD
Retailer 10$2,807 USD
Retailer 11$2,823 USD
Retailer 6$2,875 USD
Retailer 13$3,030 USD
Retailer 8$3,204 USD
Retailer 4$3,258 USD
Retailer 7$3,298 USD
Retailer 14$3,370 USD
Retailer 5$3,647 USD
Retailer 9$3,803 USD
Retailer 12$5,196 USD
Queensmith$6,039 USD

27 data points across 14 retailers

22 retailers$2,368 USD to $5,196 USD

A
Cheapest Retailer
-
$2,368 USD
A
Retailer 2
-
$2,466 USD
View
B+
Retailer 3
-
$2,807 USD
View
B+
Retailer 4
-
$2,823 USD
View
B+
Retailer 5
-
$2,875 USD
View
Final sale: no returns
B+
Retailer 6
-
$2,955 USD
View
B+
Retailer 7
-
$3,030 USD
View
Retailer 8
-
$3,131 USD
View
Price last confirmed 19 days ago
Retailer 9
-
$3,131 USD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$3,170 USD
View
B+
Retailer 11
-
$3,204 USD
View
Retailer 12
-
$3,252 USD
View
Price last confirmed 21 days ago
B+
Retailer 13
-
$3,258 USD
View
B+
Retailer 14
-
$3,298 USD
View
B+
Retailer 15
-
$3,370 USD
View
Retailer 16
-
$3,391 USD
View
Price last confirmed 33 days ago
Retailer 17
-
$3,613 USD
View
Price last confirmed 19 days ago
B+
Retailer 18
-
$3,647 USD
View
B+
Retailer 19
-
$3,803 USD
View
B
Retailer 20
-
$5,196 USD
View
Retailer 21
-
$5,456 USD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
1543538328 · Oct 28
$6,039 USD
£4,755 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $2,368 USDSave up to $2,828 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.

A
1.20ct Oval
$2,368 USD