Oval|Natural|GIA

1.30ct G SI1 Oval Natural Diamond

ID • G/SI1 • GIA 1236766711

Certificate GIA 1236766711

Diamond specifications and retailer prices

From $4,565 USD
As of October 30, 2026
Save $5,098 USD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,663 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded G 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 1236766711. Listed at 16 retailers as of October 30, 2026, with prices from $4,565 to $9,663, a $5,098 spread on the same certified stone. NZ Jewellers lists it at $9,663. 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

1.30
Carat
G
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.72°
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 1236766711
Dimensions8.81 × 5.97 × 3.72 mm
L/W Ratio1.48
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Needle
Top View
8.81 mm5.97 mm1.30 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1236766711
Side View
Table 58.0%Crown 35.72°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 62.3%

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: Oct 30
Current: $5,636 USD|Low: $4,428 USD|High: $8,614 USD|Avg: $5,907 USD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9$4,565 USD
Retailer 8$4,831 USD
Retailer 2$4,910 USD
Retailer 11$5,005 USD
Retailer 3$5,234 USD
Retailer 1$5,636 USD
Retailer 5$5,636 USD
Retailer 10$5,787 USD
Retailer 7$6,314 USD
Retailer 6$7,098 USD
Retailer 4$8,512 USD

38 data points across 11 retailers

16 retailers$4,565 USD to $9,663 USD

B+
Cheapest Retailer
-
$4,565 USD
B+
Retailer 2
-
$4,831 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,910 USD
View
B+
Retailer 4
-
$5,005 USD
View
B+
Retailer 5
-
$5,234 USD
View
B+
Retailer 6
-
$5,234 USD
View
B+
Retailer 7
-
$5,234 USD
View
B+
Retailer 8
-
$5,636 USD
£4,438 GBP
View
B+
Retailer 9
-
$5,636 USD
£4,438 GBP
View
Retailer 10
-
$5,787 USD
A$8,903 AUD
View
Price last confirmed 22 days ago
B
Retailer 11
-
$5,927 USD
View
B
Retailer 12
-
$6,039 USD
View
B
Retailer 13
-
$6,314 USD
€6,013 EUR
View
B
Retailer 14
-
$7,098 USD
ZAR 114,675 ZAR
View
B
Retailer 15
-
$8,512 USD
£6,702 GBP
View
Most Expensive
B
NZ Jewellers
8b46fd96-65c0-43ad-a020-f4f68d6beccb · Oct 30
$9,663 USD
View
15 more retailers have this diamond
Prices start from $4,565 USDSave up to $5,098 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+
1.30ct Oval
$4,565 USD