Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

VG • I/SI1 • GIA 6542158371

Certificate GIA 6542158371

Diamond specifications and retailer prices

From $5,175 NZD
As of November 4, 2026
Save $6,548 NZD (56%) vs most expensive(unlock to see where)
34 retailers carry this diamond
Most expensive: $11,724 NZD at NZ Jewellers · As of September 30, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542158371. Listed at 34 retailers as of November 4, 2026, with a 127% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39.91°
Pavilion angle39.79°
OriginNatural
Grading LabGIA
CertificateGIA 6542158371
Dimensions8.17 × 5.92 × 3.78 mm
L/W Ratio1.38
Top View
8.17 mm5.92 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542158371
Side View
Table 59.0%Crown 39.91°Girdle: STK-THKPavilion 39.79°Culet: NoneDepth 63.8%

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 4
Current: $8,213 NZD|Low: $5,157 NZD|High: $11,388 NZD|Avg: $7,075 NZD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$5,175 NZD
Retailer 10$5,626 NZD
Retailer 2$5,680 NZD
Retailer 3$5,890 NZD
Retailer 8$6,097 NZD
Retailer 9$6,913 NZD
Retailer 4$6,963 NZD
Retailer 11$7,207 NZD
Retailer 7$7,874 NZD
Retailer 1$8,213 NZD
Retailer 5$11,222 NZD

38 data points across 11 retailers

34 retailers$5,175 NZD to $11,724 NZD

B+
Cheapest Retailer
-
$5,175 NZD
B+
Retailer 2
-
$5,412 NZD
View
B+
Retailer 3
-
$5,626 NZD
View
Final sale: no returns
B+
Retailer 4
-
$5,680 NZD
View
B
Retailer 5
-
$5,890 NZD
View
Retailer 6
-
$6,097 NZD
View
Price last confirmed 31 days ago
Retailer 7
-
$6,097 NZD
View
Price last confirmed 37 days ago
Retailer 8
-
$6,097 NZD
View
Price last confirmed 16 days ago
Retailer 9
-
$6,097 NZD
View
Price last confirmed 9 days ago
Retailer 10
-
$6,097 NZD
View
Price last confirmed 22 days ago
Retailer 11
-
$6,097 NZD
View
Price last confirmed 46 days ago
B
Retailer 12
-
$6,117 NZD
View
Retailer 13
-
$6,332 NZD
View
Price last confirmed 39 days ago
B
Retailer 14
-
$6,638 NZD
View
B
Retailer 15
-
$6,638 NZD
View
B
Retailer 16
-
$6,873 NZD
View
B
Retailer 17
-
$6,913 NZD
View
Retailer 18
-
$6,913 NZD
View
Price last confirmed 29 days ago
Retailer 19
-
$6,913 NZD
View
Price last confirmed 38 days ago
B
Retailer 20
-
$6,963 NZD
View
Retailer 21
-
$7,033 NZD
View
Price last confirmed 46 days ago
Retailer 22
-
$7,033 NZD
View
Price last confirmed 39 days ago
Retailer 23
-
$7,033 NZD
View
Price last confirmed 29 days ago
Retailer 24
-
$7,033 NZD
View
Price last confirmed 17 days ago
B
Retailer 25
-
$7,033 NZD
View
Retailer 26
-
$7,207 NZD
View
Price last confirmed 30 days ago
B
Retailer 27
-
$7,284 NZD
View
B
Retailer 28
-
$7,874 NZD
View
B
Retailer 29
-
$8,213 NZD
View
B
Retailer 30
-
$11,222 NZD
View
Retailer 31
-
$11,724 NZD
View
Price last confirmed 49 days ago
Retailer 32
-
$11,724 NZD
View
Price last confirmed 18 days ago
C
Retailer 33
-
$11,724 NZD
View
Most Expensive
NZ Jewellers
5139d971-50c4-4f32-ac7c-6bcbe1b82803 · Sep 30
$11,724 NZD
$6,499 USD
View
Price last confirmed 37 days ago
33 more retailers have this diamond
Prices start from $5,175 NZDSave up to $6,548 NZD

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
$5,175 NZD