Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 7551283807

Certificate GIA 7551283807

Diamond specifications and retailer prices

From $1,600 USD
As of November 6, 2026
Save $2,936 USD (65%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,965 USD at NZ Jewellers · As of September 14, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded I 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 7551283807. Listed at 13 retailers as of November 5, 2026, with a 184% 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551283807
Dimensions8.23 × 5.88 × 3.71 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather
Top View
8.23 mm5.88 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551283807
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 63.2%

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: $4,536 USD|Low: $1,600 USD|High: $4,879 USD|Avg: $2,617 USD|-7.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8$1,600 USD
Retailer 10$2,061 USD
Retailer 9$2,170 USD
Retailer 3$2,192 USD
Retailer 2$2,217 USD
Retailer 7$2,270 USD
Retailer 6$2,274 USD
Retailer 11$2,579 USD
Retailer 4$2,707 USD
Retailer 5$3,790 USD
NZ Jewellers$4,536 USD

43 data points across 11 retailers

13 retailers$1,600 USD to $4,536 USD

A
Cheapest Retailer
-
$1,600 USD
A
Retailer 2
-
$2,061 USD
View
A
Retailer 3
-
$2,170 USD
View
A
Retailer 4
-
$2,192 USD
View
Final sale: no returns
A
Retailer 5
-
$2,217 USD
View
A
Retailer 6
-
$2,270 USD
View
B+
Retailer 7
-
$2,274 USD
View
Retailer 8
-
$2,375 USD
View
Price last confirmed 53 days ago
B+
Retailer 9
-
$2,579 USD
View
B+
Retailer 10
-
$2,707 USD
View
B+
Retailer 11
-
$3,790 USD
View
B
Retailer 12
-
$4,536 USD
View
Most Expensive
NZ Jewellers
c6fedaf0-5d0b-43d5-9dfa-53d55f288573 · Sep 14
$4,965 USD
View
Price last confirmed 53 days ago
12 more retailers have this diamond
Prices start from $1,600 USDSave up to $2,936 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
$1,600 USD