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Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 5526668826

Certificate GIA 5526668826

Diamond specifications and retailer prices

From $8,705 SGD
$6,809 USD
As of November 1, 2026
Save $9,888 SGD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $18,593 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two 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 5526668826. Listed at 20 retailers as of October 30, 2026, with prices from $8,705 to $18,593, a $9,888 spread on the same certified stone. NZ Jewellers lists it at $18,593. 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

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5526668826
Dimensions9.41 × 6.18 × 3.99 mm
L/W Ratio1.52
Top View
9.41 mm6.18 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5526668826
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.6%

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 1
Current: $18,593 SGD|Low: $8,522 SGD|High: $18,593 SGD|Avg: $11,587 SGD
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
November 2, 2026
Retailer 15$8,705 SGD
Retailer 14$9,288 SGD
Retailer 13$9,297 SGD
Retailer 3$9,459 SGD
Retailer 7$10,071 SGD
Retailer 4$10,226 SGD
Retailer 8$10,274 SGD
Retailer 5$10,289 SGD
Retailer 12$10,527 SGD
Retailer 11$11,237 SGD
Retailer 6$11,621 SGD
Retailer 2$12,145 SGD
Retailer 10$13,657 SGD
Retailer 9$15,494 SGD
NZ Jewellers$18,593 SGD

42 data points across 15 retailers

20 retailers$8,705 SGD to $18,593 SGD

B+
Cheapest Retailer
-
$8,705 SGD
$6,809 USD
B
Retailer 2
-
$9,288 SGD
$7,265 USD
View
B
Retailer 3
-
$9,297 SGD
$7,272 USD
View
B
Retailer 4
-
$9,297 SGD
$7,272 USD
View
Final sale: no returns
B
Retailer 5
-
$9,459 SGD
$7,399 USD
View
B
Retailer 6
-
$10,071 SGD
$7,878 USD
View
B
Retailer 7
-
$10,226 SGD
$7,999 USD
View
B+
Retailer 8
-
$10,274 SGD
£6,328 GBP
View
B
Retailer 9
-
$10,289 SGD
$8,048 USD
View
Retailer 10
-
$10,527 SGD
A$12,668 AUD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$11,084 SGD
$8,670 USD
View
B
Retailer 12
-
$11,084 SGD
$8,670 USD
View
B
Retailer 13
-
$11,153 SGD
$8,724 USD
View
B
Retailer 14
-
$11,237 SGD
$8,790 USD
View
B
Retailer 15
-
$11,454 SGD
$8,960 USD
View
B
Retailer 16
-
$11,621 SGD
$9,090 USD
View
B
Retailer 17
-
$12,145 SGD
€9,048 EUR
View
B
Retailer 18
-
$13,657 SGD
ZAR 172,588 ZAR
View
B
Retailer 19
-
$15,494 SGD
£9,543 GBP
View
Most Expensive
B
NZ Jewellers
46340976-d7d4-470f-9b56-6b02ff4253f8 · Oct 30
$18,593 SGD
$14,544 USD
View
19 more retailers have this diamond
Prices start from $8,705 SGDSave up to $9,888 SGD

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+
1.51ct Oval
$8,705 SGD