Oval|Natural|GIA

1.55ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 1557995418

Certificate GIA 1557995418

Diamond specifications and retailer prices

From $2,060 USD
As of November 6, 2026
Save $3,731 USD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,172 USD at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.55ct natural oval diamond

This 1.55ct natural oval sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557995418. Listed at 21 retailers as of November 5, 2026, with a 181% 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

1.55
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1557995418
Dimensions9.20 × 6.52 × 3.93 mm
L/W Ratio1.41
Top View
9.20 mm6.52 mm1.55 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1557995418
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $5,791 USD|Low: $2,060 USD|High: $6,172 USD|Avg: $3,216 USD|-6.2%
NZ Jewellers
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
Retailer 17
Retailer 18
November 6, 2026
Retailer 5$2,060 USD
Retailer 18$2,481 USD
Retailer 17$2,565 USD
Retailer 10$2,619 USD
Retailer 8$2,657 USD
Retailer 2$2,687 USD
Retailer 16$2,770 USD
Retailer 7$2,861 USD
Retailer 12$2,868 USD
Retailer 4$2,876 USD
Retailer 11$2,911 USD
Retailer 14$2,931 USD
Retailer 9$3,082 USD
Retailer 6$3,196 USD
Retailer 13$3,223 USD
Retailer 15$3,380 USD
Retailer 3$4,839 USD
NZ Jewellers$5,791 USD

23 data points across 18 retailers

21 retailers$2,060 USD to $5,791 USD

A
Cheapest Retailer
-
$2,060 USD
A
Retailer 2
-
$2,481 USD
View
A
Retailer 3
-
$2,565 USD
View
A
Retailer 4
-
$2,619 USD
View
A
Retailer 5
-
$2,657 USD
View
A
Retailer 6
-
$2,687 USD
View
A
Retailer 7
-
$2,770 USD
View
Retailer 8
-
$2,861 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$2,868 USD
View
A
Retailer 10
-
$2,876 USD
View
A
Retailer 11
-
$2,911 USD
View
A
Retailer 12
-
$2,931 USD
View
Retailer 13
-
$2,952 USD
View
Price last confirmed 23 days ago
A
Retailer 14
-
$3,082 USD
View
A
Retailer 15
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$3,196 USD
View
A
Retailer 16
-
$3,223 USD
View
A
Retailer 17
-
$3,380 USD
View
Retailer 18
-
$3,407 USD
View
Price last confirmed 23 days ago
B+
Retailer 19
-
$4,839 USD
View
B+
Retailer 20
-
$5,791 USD
View
Most Expensive
NZ Jewellers
4e6a7ddd-06b5-4359-91aa-7e1456e22559 · Oct 14
$6,172 USD
View
Price last confirmed 23 days ago
20 more retailers have this diamond
Prices start from $2,060 USDSave up to $3,731 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
1.55ct Oval
$2,060 USD