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Oval|Natural|GIA

1.20ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 6551079120

Certificate GIA 6551079120

Diamond specifications and retailer prices

From $3,918 AUD
HK$21,500 HKD
As of November 2, 2026
Save $5,303 AUD (58%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $9,221 AUD 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551079120. Listed at 22 retailers as of October 28, 2026, with prices from $3,918 to $9,221, a $5,303 spread on the same certified stone. Queensmith lists it at $9,221. 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

1.20
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551079120
Dimensions8.17 × 5.93 × 3.78 mm
L/W Ratio1.38
Top View
8.17 mm5.93 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551079120
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.7%

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 2
Current: $9,221 AUD|Low: $3,900 AUD|High: $9,257 AUD|Avg: $5,708 AUD|+1.7%
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
November 2, 2026
Retailer 9$3,918 AUD
Retailer 2$4,105 AUD
Retailer 4$4,615 AUD
Retailer 3$4,685 AUD
Retailer 12$4,755 AUD
Retailer 5$5,227 AUD
Retailer 6$5,227 AUD
Retailer 10$5,358 AUD
Retailer 13$5,383 AUD
Retailer 14$5,481 AUD
Retailer 7$5,484 AUD
Retailer 8$5,651 AUD
Retailer 11$6,028 AUD
Retailer 16$6,425 AUD
Retailer 15$8,742 AUD
Queensmith$9,221 AUD

26 data points across 16 retailers

22 retailers$3,918 AUD to $9,221 AUD

A
Cheapest Retailer
-
$3,918 AUD
HK$21,500 HKD
A
Retailer 2
-
$4,105 AUD
₹274,635 INR
View
B+
Retailer 3
-
$4,615 AUD
SGD 4,381 SGD
View
B+
Retailer 4
-
$4,685 AUD
$3,291 USD
View
B+
Retailer 5
-
$4,755 AUD
$3,340 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,842 AUD
$3,401 USD
View
B+
Retailer 7
-
$4,847 AUD
$3,405 USD
View
B
Retailer 8
-
$5,143 AUD
View
Retailer 9
-
$5,227 AUD
$3,672 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$5,227 AUD
$3,672 USD
View
Price last confirmed 17 days ago
Retailer 11
-
$5,276 AUD
$3,706 USD
View
Price last confirmed 34 days ago
B+
Retailer 12
-
$5,358 AUD
$3,763 USD
View
B+
Retailer 13
-
$5,383 AUD
£2,977 GBP
View
B
Retailer 14
-
$5,481 AUD
$3,850 USD
View
B
Retailer 15
-
$5,484 AUD
SGD 5,206 SGD
View
Retailer 16
-
$5,651 AUD
View
Price last confirmed 24 days ago
B
Retailer 17
-
$6,028 AUD
€4,033 EUR
View
Retailer 18
-
$6,087 AUD
$4,276 USD
View
Price last confirmed 34 days ago
B
Retailer 19
-
$6,425 AUD
ZAR 72,912 ZAR
View
B
Retailer 20
-
$8,742 AUD
£4,835 GBP
View
Retailer 21
-
$9,191 AUD
$6,456 USD
View
Price last confirmed 32 days ago
Most Expensive
B
Queensmith
6551079120 · Oct 28
$9,221 AUD
£5,100 GBP
View
21 more retailers have this diamond
Prices start from $3,918 AUDSave up to $5,303 AUD

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
$3,918 AUD